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Redeemable Noncontrolling Interests in Subsidiaries - Summary of Changes in Redeemable Noncontrolling Interest in Subsidiaries (Details) - Redeemable Noncontrolling Interests in Subsidiaries/ Temporary Equity - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Increase (Decrease) in Temporary Equity [Roll Forward]
Balance, beginning of period	$ 236,987	$ 212,086	$ 182,513
Net Income (Loss)	2,015	9,658	4,786
Other Comprehensive Income (Loss), net of tax	(7,443)	6,593	6,907
Subscriptions—Redeemable Noncontrolling Interest Holders	998,965	20,985	9,356
Consolidation/(Deconsolidation)	(985,248)	(3,424)	454
Stock Award Activity	9,410	8,786	7,888
Distributions to Noncontrolling Interests in Subsidiaries	(4,926)	(16,218)	(3,580)
Business Acquisition			(386)
Acquisition of Additional Equity of HFML	(167,302)
Change in Estimated Redemption Value of Redeemable Noncontrolling Interests	(19,256)	(1,479)	4,148
Balance, end of period	63,202	236,987	212,086
Consolidated Investment Companies
Increase (Decrease) in Temporary Equity [Roll Forward]
Balance, beginning of period	24,246	19,872	11,626
Net Income (Loss)	304	3,626	2,016
Subscriptions—Redeemable Noncontrolling Interest Holders	997,556	20,985	9,356
Consolidation/(Deconsolidation)	(994,430)	(4,019)	454
Distributions to Noncontrolling Interests in Subsidiaries	(3,017)	(16,218)	(3,580)
Balance, end of period	24,659	24,246	19,872
HFML and other entities
Increase (Decrease) in Temporary Equity [Roll Forward]
Balance, beginning of period	212,741	192,214	170,887
Net Income (Loss)	1,711	6,032	2,770
Other Comprehensive Income (Loss), net of tax	(7,443)	6,593	6,907
Subscriptions—Redeemable Noncontrolling Interest Holders	1,409
Consolidation/(Deconsolidation)	9,182	595
Stock Award Activity	9,410	8,786	7,888
Distributions to Noncontrolling Interests in Subsidiaries	(1,909)
Business Acquisition			(386)
Acquisition of Additional Equity of HFML	(167,302)
Change in Estimated Redemption Value of Redeemable Noncontrolling Interests	(19,256)	(1,479)	4,148
Balance, end of period	$ 38,543	$ 212,741	$ 192,214

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Temporary Equity, Acquisition of Additional Equity

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Temporary Equity, Change In Redemption Value

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Temporary Equity, Consolidation (Deconsolidation)

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Temporary Equity, Decrease from Distributions to Noncontrolling Interest Holders

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Temporary Equity, Increase From Business Acquisition

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Temporary Equity, Stock Issued During Period, Value, Share-Based Compensation, Net Of Forfeitures

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Carrying amount, attributable to parent and noncontrolling interests, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.27(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(g)(1)(ii))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

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Adjustments to temporary equity resulting from foreign currency translation adjustments.

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The portion of net income or loss attributable to temporary equity interest.

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Value of new stock classified as temporary equity issued during the period.

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