US StockDetailed Quotes

Provided by Tiger Fintech (Singapore) Pte. Ltd.

Affiliated Managers Group Inc

20.39

-0.2400-1.16%

Volume:2.59K

Turnover:53.06K

Market Cap:1.15B

PE:65.77

High:20.53

Open:20.40

Low:20.39

Close:20.63

Loading ...

Overview Company News Filings

Annual Report

10-K - Annual report [Section 13 and 15(d), not S-K Item 405]

Beneficial Ownership Change

SC 13G - Statement of acquisition of beneficial ownership by individuals

Beneficial Ownership Change

SC 13G/A [Amend] - Statement of acquisition of beneficial ownership by individuals

Beneficial Ownership Change

SC 13G/A [Amend] - Statement of acquisition of beneficial ownership by individuals

Major Issues Report

8-K - Current report

Beneficial Ownership Change

SC 13G/A [Amend] - Statement of acquisition of beneficial ownership by individuals

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

Quarterly Report

10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

[Supp]Public Prospectus

FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

Quarterly Report

10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

Employee Stock Ownership

S-8 - Securities to be offered to employees in employee benefit plans

Major Issues Report

8-K - Current report

{"basename":"","ssrTDKData":{"titleTemplate":"%s - Tiger Brokers","title":"Tiger Brokers | Global Stocks, Options & Futures Trading App","description":"Tiger Brokers, one-stop investment in US stocks, SGX stocks, HK stocks, A-shares & other global assets. One of the best stock trading platforms in Singapore.","keywords":"tiger brokers,tiger trade,tiger brokers singapore,broker online,stock trading in singapore,share trading singapore,brokerage firm singapore,trading app,stock broker singapore,stock trading platforms,trading account","social":{"ogDescription":"Tiger Brokers, one-stop investment in US stocks, SGX stocks, HK stocks, A-shares & other global assets. One of the best stock trading platforms in Singapore.","ogImage":"https://c1.itigergrowtha.com/portal5/static/media/og-logo.be62fbe1.png","ogUrl":"https://www.itiger.com/stock/MGR/filings?page=3"},"companyName":"Tiger Brokers"},"pageData":{"isMobile":false,"isTiger":false,"isTTM":true,"region":"SGP","license":"TBSG","edition":"fundamental","symbol":"MGR","isAnalysisPage":false},"__swrFallback__":{"@#url:\"https://hq.skytigris.cn/stock_info/detail/global\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"MGR\",,,,,undefined,":{"symbol":"MGR","market":"US","secType":"STK","nameCN":"Affiliated Managers Group Inc","latestPrice":20.39,"timestamp":1747661806308,"preClose":20.63,"halted":0,"volume":2592,"delay":0,"floatShares":56602500,"shares":56602500,"eps":0.31,"marketStatus":"Trading","change":-0.24,"latestTime":"05-19 09:49:29 EDT","open":20.4,"high":20.5259,"low":20.39,"amount":53063.004096000004,"amplitude":0.006587,"askPrice":20.59,"askSize":43,"bidPrice":20.06,"bidSize":100,"shortable":3,"etf":0,"ttmEps":0.31,"tradingStatus":2,"nextMarketStatus":{"tag":"Post-Mkt","tradingStatus":3,"beginTime":1747684800000},"marketStatusCode":2,"adr":0,"adrRate":0,"exchange":"NYSE","adjPreClose":20.63,"dividendRate":0.072033,"volumeRatio":2.866866},"@#url:\"https://hq.skytigris.cn/stock_info/fundamental/all\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"MGR\",,,,,undefined,":{"symbol":"MGR","floatShares":56602500,"roa":"5.49%","roe":"6.50%","lyrEps":0.310891,"volumeRatio":2.866866,"shares":56602500,"dividePrice":1.46876,"high":20.5259,"amplitude":0.006587,"preClose":20.63,"low":20.39,"week52Low":19.9195,"pbRate":"0.39","week52High":25.1627,"institutionHeld":0,"latestPrice":20.39,"committee":0.398601,"eps":0.31,"divideRate":0.072033,"volume":2592,"delay":0,"ttmEps":0.31,"open":20.4,"prevYearClose":22.04,"prevWeekClose":20.63,"prevMonthClose":20.79,"prevQuarterClose":21.35,"fiveDayClose":20.72,"twentyDayClose":20.06,"sixtyDayClose":22.68},"$inf$@#url:\"https://stock-news.skytigris.cn/v3/notice/important/events/list\",params:#symbol:\"MGR\",pageSize:20,pageCount:3,market:\"us\",,,undefined,":[{"items":[{"cdn_pdf":false,"hasAttachments":true,"id":"11911632","market":"us","labels":[],"media":"sec.gov","original_id":"AN100443421000014-MGR","pdf_url":null,"pub_time":1613664000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"10-K  - Annual report [Section 13 and 15(d), not S-K Item 405]","symbol":"MGR","title":"10-K  - Annual report [Section 13 and 15(d), not S-K Item 405]","titleType":"Annual Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000014/0001004434-21-000014-index.htm","us_notice_code":"Form 10-K","us_title_en":"10-K  - Annual report [Section 13 and 15(d), not S-K Item 405]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000014/amg-20201231.htm","primary":true,"translateUrl":null,"linkName":"amg-20201231.htm","type":"10-K","id":"NTFILEF8AcZ9sSDKBFbe87","market":"us","size":2893619},{"description":"EX-4.14","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000014/amg_exhibit414x12312020.htm","primary":false,"translateUrl":null,"linkName":"amg_exhibit414x12312020.htm","type":"EX-4.14","id":"NTFILEHTEkcEEfZPAdbkxP","market":"us","size":76916},{"description":"EX-10.26","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000014/amg_exhibit1026x12312020.htm","primary":false,"translateUrl":null,"linkName":"amg_exhibit1026x12312020.htm","type":"EX-10.26","id":"NTFILE9KX5GahrbJK73jwD","market":"us","size":120315},{"description":"EX-10.28","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000014/amg_exhibit1028x12312020.htm","primary":false,"translateUrl":null,"linkName":"amg_exhibit1028x12312020.htm","type":"EX-10.28","id":"NTFILE42PptYgn11PWe8wm","market":"us","size":132049},{"description":"EX-10.33","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000014/amg_exhibit1033x12312020.htm","primary":false,"translateUrl":null,"linkName":"amg_exhibit1033x12312020.htm","type":"EX-10.33","id":"NTFILE264RJLWCQnPaNdfo","market":"us","size":8349},{"description":"EX-21.1","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000014/amg_exhibit211x12312020.htm","primary":false,"translateUrl":null,"linkName":"amg_exhibit211x12312020.htm","type":"EX-21.1","id":"NTFILE4Ussp8x5nvwf7iDS","market":"us","size":32153},{"description":"EX-23.1","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000014/amg_exhibit231x12312020.htm","primary":false,"translateUrl":null,"linkName":"amg_exhibit231x12312020.htm","type":"EX-23.1","id":"NTFILEH7VagicfHUrrFRb2","market":"us","size":4213},{"description":"EX-31.1","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000014/amg_exhibit311x12312020.htm","primary":false,"translateUrl":null,"linkName":"amg_exhibit311x12312020.htm","type":"EX-31.1","id":"NTFILE9dpVVMLGQFaPLht3","market":"us","size":11833},{"description":"EX-31.2","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000014/amg_exhibit312x12312020.htm","primary":false,"translateUrl":null,"linkName":"amg_exhibit312x12312020.htm","type":"EX-31.2","id":"NTFILEA1iyq7kTrE4cDCnX","market":"us","size":11869},{"description":"EX-32.1","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000014/amg_exhibit321x12312020.htm","primary":false,"translateUrl":null,"linkName":"amg_exhibit321x12312020.htm","type":"EX-32.1","id":"NTFILECLWS8AmtJvwCCDm9","market":"us","size":6696},{"description":"EX-32.2","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000014/amg_exhibit322x12312020.htm","primary":false,"translateUrl":null,"linkName":"amg_exhibit322x12312020.htm","type":"EX-32.2","id":"NTFILE8N7BPsQRjPMUrZ9C","market":"us","size":6677},{"description":"","seq":17,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000014/amg-20201231_g1.jpg","primary":false,"translateUrl":null,"linkName":"amg-20201231_g1.jpg","type":"GRAPHIC","id":"NTFILEFNxsvS3wZHFkWxiG","market":"us","size":114950},{"description":"","seq":18,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000014/amg-20201231_g2.jpg","primary":false,"translateUrl":null,"linkName":"amg-20201231_g2.jpg","type":"GRAPHIC","id":"NTFILEDm5we1Mm8pFcg6jT","market":"us","size":29690},{"description":"","seq":19,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000014/amg-20201231_g3.jpg","primary":false,"translateUrl":null,"linkName":"amg-20201231_g3.jpg","type":"GRAPHIC","id":"NTFILE2TksFcJ5iHTnxzp1","market":"us","size":42022},{"description":"","seq":20,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000014/amg-20201231_g4.jpg","primary":false,"translateUrl":null,"linkName":"amg-20201231_g4.jpg","type":"GRAPHIC","id":"NTFILE3JhZAkmGsLCow4yS","market":"us","size":24223},{"description":"","seq":21,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000014/amg-20201231_g5.jpg","primary":false,"translateUrl":null,"linkName":"amg-20201231_g5.jpg","type":"GRAPHIC","id":"NTFILE3E6QT33K7WQmeNkt","market":"us","size":19336}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Annual Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Annual Report","pubTime":"2021-02-19 00:00","pubTimestamp":1613664000,"title_zh":"10-K  - Annual report [Section 13 and 15(d), not S-K Item 405","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":false,"id":"11862860","market":"us","labels":[],"media":"sec.gov","original_id":"AN94039421000399-MGR","pdf_url":null,"pub_time":1613404800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"SC 13G  - Statement of acquisition of beneficial ownership by individuals","symbol":"MGR","title":"SC 13G  - Statement of acquisition of beneficial ownership by individuals","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000094039421000399/0000940394-21-000399-index.htm","us_notice_code":"Form SC 13G","us_title_en":"SC 13G  - Statement of acquisition of beneficial ownership by individuals","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2021-02-16 00:00","pubTimestamp":1613404800,"title_zh":"SC 13G  - Statement of acquisition of beneficial ownership by individuals","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"11836536","market":"us","labels":[],"media":"sec.gov","original_id":"AN148166921000004-MGR","pdf_url":null,"pub_time":1613059200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","symbol":"MGR","title":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000148166921000004/0001481669-21-000004-index.htm","us_notice_code":"Form SC 13G/A","us_title_en":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"13G/A","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000148166921000004/AMG_13G.xlsx.htm","primary":true,"translateUrl":null,"linkName":"AMG_13G.xlsx.htm","type":"SC 13G/A","id":"NTFILE3L8UGPjBxaKM1ba8","market":"us","size":19842}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2021-02-12 00:00","pubTimestamp":1613059200,"title_zh":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"11795523","market":"us","labels":[],"media":"sec.gov","original_id":"AN110465921017353-MGR","pdf_url":null,"pub_time":1612886400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","symbol":"MGR","title":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000110465921017353/0001104659-21-017353-index.htm","us_notice_code":"Form SC 13G/A","us_title_en":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"SCHEDULE 13G/A","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/102909/000110465921017353/tv0143-affiliatedmanagersgro.htm","primary":true,"translateUrl":null,"linkName":"tv0143-affiliatedmanagersgro.htm","type":"SC 13G/A","id":"NTFILEiawL8DxZrEapQRew","market":"us","size":12363}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2021-02-10 00:00","pubTimestamp":1612886400,"title_zh":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"11756383","market":"us","labels":[],"media":"sec.gov","original_id":"AN100443421000010-MGR","pdf_url":null,"pub_time":1612713600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"MGR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000010/0001004434-21-000010-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000010/amgq42020ex991.htm","primary":true,"translateUrl":null,"linkName":"amgq42020ex991.htm","type":"EX-99.1","id":"NTFILE5CJdCRjGH6jK3QSR","market":"us","size":324816},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000010/amg-20210208.htm","primary":false,"translateUrl":null,"linkName":"amg-20210208.htm","type":"8-K","id":"NTFILEDqB33sPmFrApk4Ka","market":"us","size":51811},{"description":"","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000010/amglogoa781a.jpg","primary":false,"translateUrl":null,"linkName":"amglogoa781a.jpg","type":"GRAPHIC","id":"NTFILEFPHvuwoR9d3DofMd","market":"us","size":114950},{"description":"","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000010/image55a.jpg","primary":false,"translateUrl":null,"linkName":"image55a.jpg","type":"GRAPHIC","id":"NTFILEHJUWAHVnncrtG1Qt","market":"us","size":7976},{"description":"COURTESY PDF","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443421000010/courtesy.pdf","primary":false,"translateUrl":null,"linkName":"courtesy.pdf","type":"EX-99.1","id":"NTFILECZyucdXSXgrqErCt","market":"us","size":236849}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2021-02-08 00:00","pubTimestamp":1612713600,"title_zh":"8-K  - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":false,"id":"11756382","market":"us","labels":[],"media":"sec.gov","original_id":"AN83423721003027-MGR","pdf_url":null,"pub_time":1611849600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","symbol":"MGR","title":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000083423721003027/0000834237-21-003027-index.htm","us_notice_code":"Form SC 13G/A","us_title_en":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2021-01-29 00:00","pubTimestamp":1611849600,"title_zh":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"11756380","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312521005324-MGR","pdf_url":null,"pub_time":1610035200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"MGR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000119312521005324/0001193125-21-005324-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312521005324/d105399dex991.htm","primary":true,"translateUrl":null,"linkName":"d105399dex991.htm","type":"EX-99.1","id":"NTFILE2SoSqSxKmSGRPo3r","market":"us","size":7304},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312521005324/d105399d8k.htm","primary":false,"translateUrl":null,"linkName":"d105399d8k.htm","type":"8-K","id":"NTFILE6CwATPvjKKbir4To","market":"us","size":32868},{"description":"GRAPHIC","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312521005324/g105399g0108184733892.jpg","primary":false,"translateUrl":null,"linkName":"g105399g0108184733892.jpg","type":"GRAPHIC","id":"NTFILE4qc4h4FStsXSJcSq","market":"us","size":1712}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2021-01-08 00:00","pubTimestamp":1610035200,"title_zh":"8-K  - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"11413979","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312521005236-MGR","pdf_url":null,"pub_time":1610035200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"MGR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000119312521005236/0001193125-21-005236-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-10.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312521005236/d52354dex101.htm","primary":true,"translateUrl":null,"linkName":"d52354dex101.htm","type":"EX-10.1","id":"NTFILE2nr1QTsbpn8hPEab","market":"us","size":617228},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312521005236/d52354d8k.htm","primary":false,"translateUrl":null,"linkName":"d52354d8k.htm","type":"8-K","id":"NTFILEHXM3njnFRpZJkzbG","market":"us","size":30103}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2021-01-08 00:00","pubTimestamp":1610035200,"title_zh":"8-K  - Current report","summary_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"10675779","market":"us","labels":[],"media":"sec.gov","original_id":"AN100443420000038-MGR","pdf_url":null,"pub_time":1603987200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"10-Q  - Quarterly report [Sections 13 or 15(d)]","symbol":"MGR","title":"10-Q  - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000038/0001004434-20-000038-index.htm","us_notice_code":"Form 10-Q","us_title_en":"10-Q  - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":true,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000038/amg-20200930.htm","primary":true,"translateUrl":null,"linkName":"amg-20200930.htm","type":"10-Q","id":"NTFILEBWzSQw5gi6ETmxN9","market":"us","size":2169844},{"description":"EX-31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000038/amg09302020exhibit311.htm","primary":false,"translateUrl":null,"linkName":"amg09302020exhibit311.htm","type":"EX-31.1","id":"NTFILEGttmTckQuPGTrbmf","market":"us","size":11840},{"description":"EX-31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000038/amg09302020exhibit312.htm","primary":false,"translateUrl":null,"linkName":"amg09302020exhibit312.htm","type":"EX-31.2","id":"NTFILEFh8XWJzGv89N7zjh","market":"us","size":11784},{"description":"EX-32.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000038/amg09302020exhibit321.htm","primary":false,"translateUrl":null,"linkName":"amg09302020exhibit321.htm","type":"EX-32.1","id":"NTFILEBPmkEQpP7N4yM1JY","market":"us","size":6332},{"description":"EX-32.2","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000038/amg09302020exhibit322.htm","primary":false,"translateUrl":null,"linkName":"amg09302020exhibit322.htm","type":"EX-32.2","id":"NTFILE3Dxf6KAgfVsAVxoN","market":"us","size":6463},{"description":"","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000038/amg-20200930_g1.jpg","primary":false,"translateUrl":null,"linkName":"amg-20200930_g1.jpg","type":"GRAPHIC","id":"NTFILE9E7hzECZLvUa21HK","market":"us","size":114950},{"description":"","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000038/amg-20200930_g2.jpg","primary":false,"translateUrl":null,"linkName":"amg-20200930_g2.jpg","type":"GRAPHIC","id":"NTFILED79YcbxehLrsXzhF","market":"us","size":29153}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[{"id":44486,"name":"CONSOLIDATED STATEMENTS OF INCOME","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000038/R2.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":44487,"name":"CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000038/R3.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":44488,"name":"CONSOLIDATED BALANCE SHEETS","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000038/R4.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":44489,"name":"CONSOLIDATED BALANCE SHEETS (Parenthetical)","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000038/R5.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":44490,"name":"CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000038/R6.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":44491,"name":"CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical)","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000038/R7.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":44492,"name":"CONSOLIDATED STATEMENTS OF CASH FLOWS","name_zh":"合并现金流量表","url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000038/R8.htm","cdn_url":"https://static.tigerbbs.com/97fa55036b4a633bc4f0b5cd37d82821","translation_url":"https://static.tigerbbs.com/cd9e6732ccace09083d9961f5115b486","translate_status":1}],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2020-10-30 00:00","pubTimestamp":1603987200,"title_zh":"10-Q  - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"10590913","market":"us","labels":[],"media":"sec.gov","original_id":"AN100443420000034-MGR","pdf_url":null,"pub_time":1603641600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"MGR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000034/0001004434-20-000034-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000034/amgq32020ex991.htm","primary":true,"translateUrl":null,"linkName":"amgq32020ex991.htm","type":"EX-99.1","id":"NTFILEFebaeMUq1FQGKciE","market":"us","size":472860},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000034/amg-20201026.htm","primary":false,"translateUrl":null,"linkName":"amg-20201026.htm","type":"8-K","id":"NTFILE9vnk8jamiK35UYAu","market":"us","size":64587},{"description":"","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000034/amglogoa781.jpg","primary":false,"translateUrl":null,"linkName":"amglogoa781.jpg","type":"GRAPHIC","id":"NTFILE5rafVboMuTaHZWsd","market":"us","size":114950},{"description":"","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000034/image54.jpg","primary":false,"translateUrl":null,"linkName":"image54.jpg","type":"GRAPHIC","id":"NTFILE2qbtpNaxZsq6AUNU","market":"us","size":7976},{"description":"COURTESY PDF","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000034/courtesy.pdf","primary":false,"translateUrl":null,"linkName":"courtesy.pdf","type":"EX-99.1","id":"NTFILECpTUvDKjKwrchUtF","market":"us","size":226085}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2020-10-26 00:00","pubTimestamp":1603641600,"title_zh":"8-K  - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"10426247","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312520261419-MGR","pdf_url":null,"pub_time":1601481600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"MGR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520261419/0001193125-20-261419-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"XBRL TAXONOMY EXTENSION SCHEMA","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520261419/mgrb-20200928.xsd","primary":true,"translateUrl":null,"linkName":"mgrb-20200928.xsd","type":"EX-101.SCH","id":"NTFILEH8Nu1y713cjdKKXH","market":"us","size":4631},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520261419/d935094d8k.htm","primary":false,"translateUrl":null,"linkName":"d935094d8k.htm","type":"8-K","id":"NTFILEKy4179FoyYuCzEji","market":"us","size":26454},{"description":"XBRL TAXONOMY EXTENSION DEFINITION LINKBASE","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520261419/mgrb-20200928_def.xml","primary":false,"translateUrl":null,"linkName":"mgrb-20200928_def.xml","type":"EX-101.DEF","id":"NTFILE2c9xqWKxTVUFcwEv","market":"us","size":13871},{"description":"XBRL TAXONOMY EXTENSION LABEL LINKBASE","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520261419/mgrb-20200928_lab.xml","primary":false,"translateUrl":null,"linkName":"mgrb-20200928_lab.xml","type":"EX-101.LAB","id":"NTFILE33HEdZR9SrWpKNWa","market":"us","size":23026},{"description":"XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520261419/mgrb-20200928_pre.xml","primary":false,"translateUrl":null,"linkName":"mgrb-20200928_pre.xml","type":"EX-101.PRE","id":"NTFILEAyRn7dbhnianyk1S","market":"us","size":14840},{"description":"EXTRACTED XBRL INSTANCE DOCUMENT","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520261419/d935094d8k_htm.xml","primary":false,"translateUrl":null,"linkName":"d935094d8k_htm.xml","type":"XML","id":"NTFILE4Z4nacVVi6eysbXA","market":"us","size":6475}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2020-10-01 00:00","pubTimestamp":1601481600,"title_zh":"8-K  - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"10400704","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312520252331-MGR","pdf_url":null,"pub_time":1600790400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"MGR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520252331/0001193125-20-252331-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-1.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520252331/d82761dex11.htm","primary":true,"translateUrl":null,"linkName":"d82761dex11.htm","type":"EX-1.1","id":"NTFILE8GFQtzmgkjrUFrmA","market":"us","size":172798},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520252331/d82761d8k.htm","primary":false,"translateUrl":null,"linkName":"d82761d8k.htm","type":"8-K","id":"NTFILEGannWhcufnvpg5CD","market":"us","size":32974},{"description":"EX-4.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520252331/d82761dex42.htm","primary":false,"translateUrl":null,"linkName":"d82761dex42.htm","type":"EX-4.2","id":"NTFILEEhcuJaG4gAY2Y2Bi","market":"us","size":81335},{"description":"EX-5.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520252331/d82761dex51.htm","primary":false,"translateUrl":null,"linkName":"d82761dex51.htm","type":"EX-5.1","id":"NTFILEFtCwrS1zkc2GiC98","market":"us","size":18482},{"description":"XBRL TAXONOMY EXTENSION SCHEMA","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520252331/amg-20200917.xsd","primary":false,"translateUrl":null,"linkName":"amg-20200917.xsd","type":"EX-101.SCH","id":"NTFILEDCi7z6Ai91S2RxJX","market":"us","size":4104},{"description":"XBRL TAXONOMY EXTENSION DEFINITION LINKBASE","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520252331/amg-20200917_def.xml","primary":false,"translateUrl":null,"linkName":"amg-20200917_def.xml","type":"EX-101.DEF","id":"NTFILEGEs5VE1uND3RwMqU","market":"us","size":13373},{"description":"XBRL TAXONOMY EXTENSION LABEL LINKBASE","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520252331/amg-20200917_lab.xml","primary":false,"translateUrl":null,"linkName":"amg-20200917_lab.xml","type":"EX-101.LAB","id":"NTFILEEAukPgzp5L5yaDmx","market":"us","size":21984},{"description":"XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520252331/amg-20200917_pre.xml","primary":false,"translateUrl":null,"linkName":"amg-20200917_pre.xml","type":"EX-101.PRE","id":"NTFILE6e5Vi4Gu1dk8zyji","market":"us","size":14276},{"description":"GRAPHIC","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520252331/g82761dsp36.jpg","primary":false,"translateUrl":null,"linkName":"g82761dsp36.jpg","type":"GRAPHIC","id":"NTFILE5TSdFDkfyH8gGNGJ","market":"us","size":2616}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2020-09-23 00:00","pubTimestamp":1600790400,"title_zh":"8-K  - Current report","summary_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"10400671","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312520248206-MGR","pdf_url":null,"pub_time":1600358400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"FWP  - Filing under Securities Act Rules 163/433 of free writing prospectuses","symbol":"MGR","title":"FWP  - Filing under Securities Act Rules 163/433 of free writing prospectuses","titleType":"[Supp]Public Prospectus","type":"usProspectusesRegistrations","url":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520248206/0001193125-20-248206-index.htm","us_notice_code":"Form FWP","us_title_en":"FWP  - Filing under Securities Act Rules 163/433 of free writing prospectuses","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FWP","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520248206/d10065dfwp.htm","primary":true,"translateUrl":null,"linkName":"d10065dfwp.htm","type":"FWP","id":"NTFILEGb9eNtQydkQgWR6y","market":"us","size":17711},{"description":"GRAPHIC","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520248206/g10065g18x59.jpg","primary":false,"translateUrl":null,"linkName":"g10065g18x59.jpg","type":"GRAPHIC","id":"NTFILE8zp5ugQkopPxGuSg","market":"us","size":2356}],"type_name":"Recruitment Registration","type_name_en":"Recruitment Registration","titleTypeEn":"[Supp]Public Prospectus","us_type":"招股注册","us_type_zh":"招股注册","earn_infos":[],"event_type":"important_notice","event_name":"[Supp]Public Prospectus","pubTime":"2020-09-18 00:00","pubTimestamp":1600358400,"title_zh":"FWP  - Filing under Securities Act Rules 163/433 of free writing prospectuses","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"10400691","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312520207392-MGR","pdf_url":null,"pub_time":1596384000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"MGR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520207392/0001193125-20-207392-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520207392/d22109dex991.htm","primary":true,"translateUrl":null,"linkName":"d22109dex991.htm","type":"EX-99.1","id":"NTFILEAWb7rugLbSvUNmNb","market":"us","size":6855},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520207392/d22109d8k.htm","primary":false,"translateUrl":null,"linkName":"d22109d8k.htm","type":"8-K","id":"NTFILEDtLxJwbme3CRb5jT","market":"us","size":25841},{"description":"XBRL TAXONOMY EXTENSION SCHEMA","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520207392/amg-20200801.xsd","primary":false,"translateUrl":null,"linkName":"amg-20200801.xsd","type":"EX-101.SCH","id":"NTFILE29F2XNNrSdxNUa3n","market":"us","size":4380},{"description":"XBRL TAXONOMY EXTENSION DEFINITION LINKBASE","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520207392/amg-20200801_def.xml","primary":false,"translateUrl":null,"linkName":"amg-20200801_def.xml","type":"EX-101.DEF","id":"NTFILEHVAAu6fvzU1G5axH","market":"us","size":13446},{"description":"XBRL TAXONOMY EXTENSION LABEL LINKBASE","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520207392/amg-20200801_lab.xml","primary":false,"translateUrl":null,"linkName":"amg-20200801_lab.xml","type":"EX-101.LAB","id":"NTFILEFxDEXzbNifYYsci3","market":"us","size":22281},{"description":"XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520207392/amg-20200801_pre.xml","primary":false,"translateUrl":null,"linkName":"amg-20200801_pre.xml","type":"EX-101.PRE","id":"NTFILEGKCJzNqkUmqWFWum","market":"us","size":14349},{"description":"GRAPHIC","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520207392/g22109g0506180828117.jpg","primary":false,"translateUrl":null,"linkName":"g22109g0506180828117.jpg","type":"GRAPHIC","id":"NTFILE8Qbvg8LQLyzbnDwV","market":"us","size":2252},{"description":"EXTRACTED XBRL INSTANCE DOCUMENT","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520207392/d22109d8k_htm.xml","primary":false,"translateUrl":null,"linkName":"d22109d8k_htm.xml","type":"XML","id":"NTFILE3WB4nfMcdXAf5SA9","market":"us","size":5372}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2020-08-03 00:00","pubTimestamp":1596384000,"title_zh":"8-K  - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"10400674","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312520208138-MGR","pdf_url":null,"pub_time":1596384000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"MGR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520208138/0001193125-20-208138-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520208138/d80969dex991.htm","primary":true,"translateUrl":null,"linkName":"d80969dex991.htm","type":"EX-99.1","id":"NTFILEGgGXKwXXTPgVzVDE","market":"us","size":8005},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520208138/d80969d8k.htm","primary":false,"translateUrl":null,"linkName":"d80969d8k.htm","type":"8-K","id":"NTFILEHusL5eitSANEaTBh","market":"us","size":28622},{"description":"XBRL TAXONOMY EXTENSION SCHEMA","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520208138/amg-20200803.xsd","primary":false,"translateUrl":null,"linkName":"amg-20200803.xsd","type":"EX-101.SCH","id":"NTFILE2RyhAqxgEaEDBqPc","market":"us","size":4103},{"description":"XBRL TAXONOMY EXTENSION DEFINITION LINKBASE","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520208138/amg-20200803_def.xml","primary":false,"translateUrl":null,"linkName":"amg-20200803_def.xml","type":"EX-101.DEF","id":"NTFILEES16DQSYEWyTr3Xu","market":"us","size":13372},{"description":"XBRL TAXONOMY EXTENSION LABEL LINKBASE","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520208138/amg-20200803_lab.xml","primary":false,"translateUrl":null,"linkName":"amg-20200803_lab.xml","type":"EX-101.LAB","id":"NTFILED3WPpDrEBYGdupXd","market":"us","size":21983},{"description":"XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520208138/amg-20200803_pre.xml","primary":false,"translateUrl":null,"linkName":"amg-20200803_pre.xml","type":"EX-101.PRE","id":"NTFILEBUqxg5psyCgwaxg5","market":"us","size":14275},{"description":"GRAPHIC","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520208138/g809691.jpg","primary":false,"translateUrl":null,"linkName":"g809691.jpg","type":"GRAPHIC","id":"NTFILEBLDTAyoEb8veJJxo","market":"us","size":2750},{"description":"EXTRACTED XBRL INSTANCE DOCUMENT","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520208138/d80969d8k_htm.xml","primary":false,"translateUrl":null,"linkName":"d80969d8k_htm.xml","type":"XML","id":"NTFILE9FKzsZJTmVw3SW7L","market":"us","size":5130}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2020-08-03 00:00","pubTimestamp":1596384000,"title_zh":"8-K  - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"10400679","market":"us","labels":[],"media":"sec.gov","original_id":"AN100443420000029-MGR","pdf_url":null,"pub_time":1596124800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"10-Q  - Quarterly report [Sections 13 or 15(d)]","symbol":"MGR","title":"10-Q  - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/0001004434-20-000029-index.htm","us_notice_code":"Form 10-Q","us_title_en":"10-Q  - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":true,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg0630202010q.htm","primary":true,"translateUrl":null,"linkName":"amg0630202010q.htm","type":"10-Q","id":"NTFILE6r2KwbzraCfdjGHg","market":"us","size":2514785},{"description":"EXHIBIT 3.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg06302020exhibit31.htm","primary":false,"translateUrl":null,"linkName":"amg06302020exhibit31.htm","type":"EX-3.1","id":"NTFILE3hroZfPLJtgmWXKd","market":"us","size":122265},{"description":"EXHIBIT 10.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg06302020exhibit101.htm","primary":false,"translateUrl":null,"linkName":"amg06302020exhibit101.htm","type":"EX-10.1","id":"NTFILEHj9TC55jHvXuStCb","market":"us","size":7163},{"description":"EXHIBIT 10.2","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg06302020exhibit102.htm","primary":false,"translateUrl":null,"linkName":"amg06302020exhibit102.htm","type":"EX-10.2","id":"NTFILEEndAL4MFQGWLHpT7","market":"us","size":7140},{"description":"EXHIBIT 10.3","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg06302020exhibit103.htm","primary":false,"translateUrl":null,"linkName":"amg06302020exhibit103.htm","type":"EX-10.3","id":"NTFILE4KsaVaqBGhEQXNRF","market":"us","size":7205},{"description":"EXHIBIT 10.4","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg06302020exhibit104.htm","primary":false,"translateUrl":null,"linkName":"amg06302020exhibit104.htm","type":"EX-10.4","id":"NTFILEEL184qMr4yxmEAG2","market":"us","size":7075},{"description":"EXHIBIT 10.6","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg06302020exhibit106.htm","primary":false,"translateUrl":null,"linkName":"amg06302020exhibit106.htm","type":"EX-10.6","id":"NTFILEGdYSJky177Kafh27","market":"us","size":111424},{"description":"EXHIBIT 10.7","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg06302020exhibit107.htm","primary":false,"translateUrl":null,"linkName":"amg06302020exhibit107.htm","type":"EX-10.7","id":"NTFILEFGkAuJZ9sMSk5qSx","market":"us","size":39010},{"description":"EXHIBIT 10.8","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg06302020exhibit108.htm","primary":false,"translateUrl":null,"linkName":"amg06302020exhibit108.htm","type":"EX-10.8","id":"NTFILEEMcYXjJqSB8Uxp7M","market":"us","size":129956},{"description":"EXHIBIT 10.9","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg06302020exhibit109.htm","primary":false,"translateUrl":null,"linkName":"amg06302020exhibit109.htm","type":"EX-10.9","id":"NTFILEHq6KvT6XcGsJiSWz","market":"us","size":47743},{"description":"EXHIBIT 10.10","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg06302020exhibit1010.htm","primary":false,"translateUrl":null,"linkName":"amg06302020exhibit1010.htm","type":"EX-10.10","id":"NTFILE4bq5ouZuke226GyJ","market":"us","size":127794},{"description":"EXHIBIT 10.11","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg06302020exhibit1011.htm","primary":false,"translateUrl":null,"linkName":"amg06302020exhibit1011.htm","type":"EX-10.11","id":"NTFILE69G1nb2bfWNUZ9k6","market":"us","size":139253},{"description":"EXHIBIT 10.12","seq":13,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg06302020exhibit1012.htm","primary":false,"translateUrl":null,"linkName":"amg06302020exhibit1012.htm","type":"EX-10.12","id":"NTFILE9s3Ph5kic7F1F4oQ","market":"us","size":17046},{"description":"EXHIBIT 10.13","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg06302020exhbit1013.htm","primary":false,"translateUrl":null,"linkName":"amg06302020exhbit1013.htm","type":"EX-10.13","id":"NTFILE3AQq1YsXdzS3pARt","market":"us","size":252248},{"description":"EXHIBIT 31.1","seq":15,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg06302020exhibit311.htm","primary":false,"translateUrl":null,"linkName":"amg06302020exhibit311.htm","type":"EX-31.1","id":"NTFILEGPKCP1n6FDcqGFjp","market":"us","size":13509},{"description":"EXHIBIT 31.2","seq":16,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg06302020exhibit312.htm","primary":false,"translateUrl":null,"linkName":"amg06302020exhibit312.htm","type":"EX-31.2","id":"NTFILE5iEtVtxVnSgfwcNp","market":"us","size":13374},{"description":"EXHIBIT 32.1","seq":17,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg06302020exhibit321.htm","primary":false,"translateUrl":null,"linkName":"amg06302020exhibit321.htm","type":"EX-32.1","id":"NTFILE2A8ydik2sWP9Y5Vb","market":"us","size":7024},{"description":"EXHIBIT 32.2","seq":18,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg06302020exhibit322.htm","primary":false,"translateUrl":null,"linkName":"amg06302020exhibit322.htm","type":"EX-32.2","id":"NTFILEGvZskhy8nNFia3BW","market":"us","size":6983},{"description":"XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT","seq":19,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg-20200630.xsd","primary":false,"translateUrl":null,"linkName":"amg-20200630.xsd","type":"EX-101.SCH","id":"NTFILE58vMcvJ4teJ8TAE7","market":"us","size":69788},{"description":"XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT","seq":20,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg-20200630_cal.xml","primary":false,"translateUrl":null,"linkName":"amg-20200630_cal.xml","type":"EX-101.CAL","id":"NTFILEE7MNpNXmqPbSoemo","market":"us","size":84791},{"description":"XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT","seq":21,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg-20200630_def.xml","primary":false,"translateUrl":null,"linkName":"amg-20200630_def.xml","type":"EX-101.DEF","id":"NTFILEEULRdCVBHdyYLe6K","market":"us","size":334676},{"description":"XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT","seq":22,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg-20200630_lab.xml","primary":false,"translateUrl":null,"linkName":"amg-20200630_lab.xml","type":"EX-101.LAB","id":"NTFILECRnt1EMHv4LSspEC","market":"us","size":847836},{"description":"XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT","seq":23,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg-20200630_pre.xml","primary":false,"translateUrl":null,"linkName":"amg-20200630_pre.xml","type":"EX-101.PRE","id":"NTFILEAVuFsszScko8xhk8","market":"us","size":509311},{"description":"","seq":24,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amglogoa81.jpg","primary":false,"translateUrl":null,"linkName":"amglogoa81.jpg","type":"GRAPHIC","id":"NTFILE2YWqUHUnbcyVNXXn","market":"us","size":114950},{"description":"","seq":25,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/q2aum724.jpg","primary":false,"translateUrl":null,"linkName":"q2aum724.jpg","type":"GRAPHIC","id":"NTFILEAMFaLi1YmEiFGEio","market":"us","size":28582},{"description":"EXTRACTED XBRL INSTANCE DOCUMENT","seq":26,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/amg0630202010q_htm.xml","primary":false,"translateUrl":null,"linkName":"amg0630202010q_htm.xml","type":"XML","id":"NTFILEF3d5PsJN9rUDA8Uo","market":"us","size":2007951}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[{"id":36857,"name":"CONSOLIDATED STATEMENTS OF INCOME","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/R2.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":36858,"name":"CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/R3.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":36859,"name":"CONSOLIDATED BALANCE SHEETS","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/R4.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":36860,"name":"CONSOLIDATED BALANCE SHEETS (Parenthetical)","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/R5.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":36861,"name":"CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/R6.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":36862,"name":"CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical)","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/R7.htm","cdn_url":"","translation_url":"","translate_status":0},{"id":36863,"name":"CONSOLIDATED STATEMENTS OF CASH FLOWS","name_zh":null,"url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000029/R8.htm","cdn_url":"","translation_url":"","translate_status":0}],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2020-07-31 00:00","pubTimestamp":1596124800,"title_zh":"10-Q  - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"10400700","market":"us","labels":[],"media":"sec.gov","original_id":"AN100443420000024-MGR","pdf_url":null,"pub_time":1595779200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"MGR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000024/0001004434-20-000024-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000024/amgq22020ex991.htm","primary":true,"translateUrl":null,"linkName":"amgq22020ex991.htm","type":"EX-99.1","id":"NTFILE35s9WzuZuP46EwYA","market":"us","size":460345},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000024/amgq220208-k.htm","primary":false,"translateUrl":null,"linkName":"amgq220208-k.htm","type":"8-K","id":"NTFILEHToddiBVUU5SpSdB","market":"us","size":59308},{"description":"XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000024/amg-20200727.xsd","primary":false,"translateUrl":null,"linkName":"amg-20200727.xsd","type":"EX-101.SCH","id":"NTFILE7ebXzh6zarMmF2Ub","market":"us","size":4807},{"description":"XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000024/amg-20200727_cal.xml","primary":false,"translateUrl":null,"linkName":"amg-20200727_cal.xml","type":"EX-101.CAL","id":"NTFILEFSG3HHdejX52u7ad","market":"us","size":609},{"description":"XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000024/amg-20200727_def.xml","primary":false,"translateUrl":null,"linkName":"amg-20200727_def.xml","type":"EX-101.DEF","id":"NTFILECAMtGBbbVKm4zexe","market":"us","size":15250},{"description":"XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000024/amg-20200727_lab.xml","primary":false,"translateUrl":null,"linkName":"amg-20200727_lab.xml","type":"EX-101.LAB","id":"NTFILEJ3tq6p7KfmaxCuvr","market":"us","size":33454},{"description":"XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000024/amg-20200727_pre.xml","primary":false,"translateUrl":null,"linkName":"amg-20200727_pre.xml","type":"EX-101.PRE","id":"NTFILEJ2fcF2EeLm3UDC2p","market":"us","size":17156},{"description":"COURTESY PDF","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000024/courtesy.pdf","primary":false,"translateUrl":null,"linkName":"courtesy.pdf","type":"EX-99.1","id":"NTFILE3fyB2TDpt61kbXRN","market":"us","size":166855},{"description":"","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000024/amglogoa78.jpg","primary":false,"translateUrl":null,"linkName":"amglogoa78.jpg","type":"GRAPHIC","id":"NTFILEBoxk8EABezHTCBCD","market":"us","size":114950},{"description":"","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000024/triangle2a02.jpg","primary":false,"translateUrl":null,"linkName":"triangle2a02.jpg","type":"GRAPHIC","id":"NTFILEC3ThWXCZjM94RVRw","market":"us","size":7976},{"description":"EXTRACTED XBRL INSTANCE DOCUMENT","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443420000024/amgq220208-k_htm.xml","primary":false,"translateUrl":null,"linkName":"amgq220208-k_htm.xml","type":"XML","id":"NTFILEDu7kS8JFkkYW2e5c","market":"us","size":6348}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2020-07-27 00:00","pubTimestamp":1595779200,"title_zh":"8-K  - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"10400697","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312520198563-MGR","pdf_url":null,"pub_time":1595520000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"MGR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520198563/0001193125-20-198563-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"XBRL TAXONOMY EXTENSION SCHEMA","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520198563/amg-20200723.xsd","primary":true,"translateUrl":null,"linkName":"amg-20200723.xsd","type":"EX-101.SCH","id":"NTFILE7VuojeAbZ2HrrtfG","market":"us","size":4104},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520198563/d87748d8k.htm","primary":false,"translateUrl":null,"linkName":"d87748d8k.htm","type":"8-K","id":"NTFILE2F1mZS8teFXexAkF","market":"us","size":23723},{"description":"XBRL TAXONOMY EXTENSION DEFINITION LINKBASE","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520198563/amg-20200723_def.xml","primary":false,"translateUrl":null,"linkName":"amg-20200723_def.xml","type":"EX-101.DEF","id":"NTFILEzdCtJWx7iqiiLjqk","market":"us","size":13373},{"description":"XBRL TAXONOMY EXTENSION LABEL LINKBASE","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520198563/amg-20200723_lab.xml","primary":false,"translateUrl":null,"linkName":"amg-20200723_lab.xml","type":"EX-101.LAB","id":"NTFILE2HtypSuCkED7PfeX","market":"us","size":21984},{"description":"XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520198563/amg-20200723_pre.xml","primary":false,"translateUrl":null,"linkName":"amg-20200723_pre.xml","type":"EX-101.PRE","id":"NTFILEBBS6ue7pUncDy1SS","market":"us","size":14276},{"description":"EXTRACTED XBRL INSTANCE DOCUMENT","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520198563/d87748d8k_htm.xml","primary":false,"translateUrl":null,"linkName":"d87748d8k_htm.xml","type":"XML","id":"NTFILE2CGF9t95GbKk387o","market":"us","size":5130}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2020-07-24 00:00","pubTimestamp":1595520000,"title_zh":"8-K  - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"10400695","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312520198612-MGR","pdf_url":null,"pub_time":1595520000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"S-8  - Securities to be offered to employees in employee benefit plans","symbol":"MGR","title":"S-8  - Securities to be offered to employees in employee benefit plans","titleType":"Employee Stock Ownership","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520198612/0001193125-20-198612-index.htm","us_notice_code":"Form S-8","us_title_en":"S-8  - Securities to be offered to employees in employee benefit plans","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"S-8","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520198612/d919223ds8.htm","primary":true,"translateUrl":null,"linkName":"d919223ds8.htm","type":"S-8","id":"NTFILECZdcrsRuQm5hYamq","market":"us","size":64420},{"description":"EX-4.7","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520198612/d919223dex47.htm","primary":false,"translateUrl":null,"linkName":"d919223dex47.htm","type":"EX-4.7","id":"NTFILE4wR5MvMjtePnd67j","market":"us","size":66299},{"description":"EX-5.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520198612/d919223dex51.htm","primary":false,"translateUrl":null,"linkName":"d919223dex51.htm","type":"EX-5.1","id":"NTFILE85Bgpfy299w5vuQ6","market":"us","size":5403},{"description":"EX-23.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520198612/d919223dex231.htm","primary":false,"translateUrl":null,"linkName":"d919223dex231.htm","type":"EX-23.1","id":"NTFILE5rQ2gzhS4g4LaCwE","market":"us","size":1551},{"description":"GRAPHIC","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520198612/g919223image001.jpg","primary":false,"translateUrl":null,"linkName":"g919223image001.jpg","type":"GRAPHIC","id":"NTFILEDtuDta6JcmPtqbGh","market":"us","size":2313}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Employee Stock Ownership","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Employee Stock Ownership","pubTime":"2020-07-24 00:00","pubTimestamp":1595520000,"title_zh":"S-8  - Securities to be offered to employees in employee benefit plans","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"10400696","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312520167797-MGR","pdf_url":null,"pub_time":1591891200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"MGR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520167797/0001193125-20-167797-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 5.07: Submission of Matters to a Vote of Security Holders","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"XBRL TAXONOMY EXTENSION SCHEMA","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520167797/amg-20200609.xsd","primary":true,"translateUrl":null,"linkName":"amg-20200609.xsd","type":"EX-101.SCH","id":"NTFILE7kQqemVmPmJ5N2ZB","market":"us","size":4104},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520167797/d930207d8k.htm","primary":false,"translateUrl":null,"linkName":"d930207d8k.htm","type":"8-K","id":"NTFILEDE5swBtFZib8yTiy","market":"us","size":55663},{"description":"XBRL TAXONOMY EXTENSION DEFINITION LINKBASE","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520167797/amg-20200609_def.xml","primary":false,"translateUrl":null,"linkName":"amg-20200609_def.xml","type":"EX-101.DEF","id":"NTFILEATy6L3RVkoFVeL5q","market":"us","size":13373},{"description":"XBRL TAXONOMY EXTENSION LABEL LINKBASE","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520167797/amg-20200609_lab.xml","primary":false,"translateUrl":null,"linkName":"amg-20200609_lab.xml","type":"EX-101.LAB","id":"NTFILEAnU4rmNU39LwD2DQ","market":"us","size":21984},{"description":"XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520167797/amg-20200609_pre.xml","primary":false,"translateUrl":null,"linkName":"amg-20200609_pre.xml","type":"EX-101.PRE","id":"NTFILECPDkFWU7cVeqGrJv","market":"us","size":14276},{"description":"EXTRACTED XBRL INSTANCE DOCUMENT","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312520167797/d930207d8k_htm.xml","primary":false,"translateUrl":null,"linkName":"d930207d8k_htm.xml","type":"XML","id":"NTFILE6fo9z6qyAran4vXx","market":"us","size":5130}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2020-06-12 00:00","pubTimestamp":1591891200,"title_zh":"8-K  - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 5.07: Submission of Matters to a Vote of Security Holders","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0}],"pageSize":20,"totalPage":5,"pageCount":3,"totalSize":100,"code":"91000000","status":"200"}],"@#url:\"https://hq.skytigris.cn/fundamental/corporate_actions/details/MGR\",params:#limit:5,,,undefined,":[{"date":"2025-06-27","symbol":"MGR","amount":0.36719,"announcedDate":null,"type":"dividend","lastAmount":null,"market":"US","newRecordDate":"2025-06-27","defaultRemindTime":1751031000000,"name":"Affiliated Managers Group Inc Pf","lastCurrency":null,"lastExecuteDate":null,"recordDate":"2025-06-30","payableDate":"2025-06-27","currency":"USD","dateTimestamp":1750996800000,"payDate":"2025-06-30"},{"date":"2025-05-08","symbol":"MGR","type":"earning","reportTimeType":"pre","market":"US","fiscalQuarterEnding":null,"expectedEps":null,"defaultRemindTime":1746691200000,"name":null,"time":"Pre-Market","dateTimestamp":1746676800000,"actualEps":null},{"date":"2025-03-28","symbol":"MGR","amount":0.36719,"announcedDate":null,"type":"dividend","lastAmount":null,"market":"US","newRecordDate":"2025-03-28","defaultRemindTime":1743168600000,"name":"Affiliated Managers Group Inc Pf","lastCurrency":null,"lastExecuteDate":null,"recordDate":"2025-03-31","payableDate":"2025-03-28","currency":"USD","dateTimestamp":1743134400000,"payDate":"2025-03-31"},{"date":"2025-02-06","symbol":"MGR","type":"earning","reportTimeType":"pre","market":"US","fiscalQuarterEnding":null,"expectedEps":null,"defaultRemindTime":1738832400000,"name":null,"time":"Pre-Market","dateTimestamp":1738818000000,"actualEps":null},{"date":"2024-12-27","symbol":"MGR","amount":0.36719,"announcedDate":null,"type":"dividend","lastAmount":null,"market":"US","newRecordDate":"2024-12-27","defaultRemindTime":1735309800000,"name":"Affiliated Managers Group Inc Pf","lastCurrency":null,"lastExecuteDate":null,"recordDate":"2024-12-30","payableDate":"2024-12-27","currency":"USD","dateTimestamp":1735275600000,"payDate":"2024-12-30"}],"@#url:\"https://hq.skytigris.cn/fundamental/dividend/history\",params:#symbol:\"MGR\",market:\"US\",,,undefined,":[{"executeDate":"2017-01-30","recordDate":"2017-02-01","paymentDate":"2017-02-15","value":0.3984375,"currency":"USD"},{"executeDate":"2017-04-27","recordDate":"2017-05-01","paymentDate":"2017-05-15","value":0.3984375,"currency":"USD"},{"executeDate":"2017-07-28","recordDate":"2017-08-01","paymentDate":"2017-08-15","value":0.3984375,"currency":"USD"},{"executeDate":"2019-06-27","recordDate":"2019-06-28","paymentDate":"2019-06-30","value":0.3794271,"currency":"USD"},{"executeDate":"2019-09-26","recordDate":"2019-09-27","paymentDate":"2019-09-30","value":0.3671875,"currency":"USD"}],"@#url:\"https://hq.skytigris.cn/fundamental/estimate/recommendation\",params:#symbol:\"MGR\",market:\"US\",delay:false,,,undefined,":{"strongBuy":0.3333,"buy":0.1667,"hold":0.5,"sell":0,"strongSell":0,"meanLabel":"BUY","meanPercent":0.1667,"analysts":6,"updateTime":1736222400000}}}