Redeemable Noncontrolling Interests - Schedule of Redeemable Noncontrolling Interest (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Increase (Decrease) in Redeemable Non-controlling Interests [Roll Forward]
Beginning balance	$ 115,513
Net income (loss) attributable to noncontrolling interests	1,914
Changes in redemption value	0	$ 17,137
Total net income (loss) attributable to noncontrolling interests	15,551	5,036
Net subscriptions (redemptions) and other	(18,582)	$ 18,234
Ending balance	112,482
CIP
Increase (Decrease) in Redeemable Non-controlling Interests [Roll Forward]
Beginning balance	28,061
Net income (loss) attributable to noncontrolling interests	(44)
Total net income (loss) attributable to noncontrolling interests	(44)
Net subscriptions (redemptions) and other	(13,594)
Ending balance	14,423
Affiliate Noncontrolling Interests
Increase (Decrease) in Redeemable Non-controlling Interests [Roll Forward]
Beginning balance	87,452
Net income (loss) attributable to noncontrolling interests	1,958
Total net income (loss) attributable to noncontrolling interests	15,595
Net subscriptions (redemptions) and other	(4,988)
Ending balance	98,059
Portion at Other than Fair Value Measurement
Increase (Decrease) in Redeemable Non-controlling Interests [Roll Forward]
Changes in redemption value	13,637
Portion at Other than Fair Value Measurement \| CIP
Increase (Decrease) in Redeemable Non-controlling Interests [Roll Forward]
Changes in redemption value	0
Portion at Other than Fair Value Measurement \| Affiliate Noncontrolling Interests
Increase (Decrease) in Redeemable Non-controlling Interests [Roll Forward]
Changes in redemption value	$ 13,637

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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- Definition

Change in noncontrolling interest during the period as a result of a change in the redemption value of redeemable noncontrolling interest.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph 15
-URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph 16(c)
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph 14
-URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764

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- Definition

Amount of Net Income (Loss) attributable to redeemable noncontrolling interest.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.19)
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

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- Definition

Redemption value, as if currently redeemable, of redeemable noncontrolling interest classified as temporary equity and the election has been made to accrete changes in redemption value to the earliest redemption date.

+ References

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- Definition

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

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- Definition

Noncontrolling Interest, Subscriptions (Redemptions)

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