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Fair Value Measurements - Additional Information (Details) - Lattice - USD ($) $ in Millions		1 Months Ended	3 Months Ended	12 Months Ended
	Jul. 29, 2016	Jan. 31, 2020	Mar. 31, 2020	Dec. 31, 2020	Jul. 29, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Contingent consideration	$ 60.0
Contingent consideration period	4 years
Payment for Contingent Consideration Liability, Operating Activities		$ 10.0
Business Combination, Contingent Consideration, Liability			$ 0.0		$ 0.0
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability			11.9
AUM Value [Member]
Business Acquisition [Line Items]
Business Combination, Contingent Consideration, Liability, Measurement Input [Extensible List]			$ 2,300.0			$ 3,000.0
Contingent Consideration
Business Acquisition [Line Items]
Discount rate				10.00%

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- Definition

Discount rate which is used to value residual cash flows generated by financial assets of a securitization, asset-backed financing arrangement, or similar transfer regardless of when the transfer occurred.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 50
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Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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- Definition

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

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Amount of liability recognized arising from contingent consideration in a business combination.

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Amount of cash outflow, not made soon after acquisition date of business combination, to settle contingent consideration liability exceeding amount recognized at acquisition date. Includes, but is not limited to, measurement period adjustment and less amount paid soon after acquisition date.

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