Equity-Based Compensation Expenses - Settlement of RSUs (Detail) - RSUs - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of RSUs settled in Class A Shares	$ 24,131	$ 12,044	$ 13,016
Fair value of RSUs settled in cash	2,570	3,879	130
Fair value of RSUs withheld to satisfy tax withholding obligations	$ 3,727	$ 4,436	$ 7,577
Number of RSUs withheld to satisfy tax withholding obligations	300,714	329,591	280,269

Aggregate cash paid by the entity during the period to settle equity instruments granted under equity-based payment arrangements.

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-Publisher FASB
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-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

+ References

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-Section 50
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