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SHARE-BASED COMPENSATION - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Document Period End Date			Jun. 30, 2021
Share based compensation expense	$ 27,646	$ 34,318	$ 55,927	$ 62,264
Share based compensation - Unrecognized deferred compensation cost	160,592		160,592
Carry Unit Plan | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value (in dollars per unit)					$ 3.89
Share based compensation expense	44	3,937	803	7,057
Share based compensation - Unrecognized deferred compensation cost	0		0
2017 LTIP | Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	24,473	25,327	48,696	45,676
Share based compensation - Unrecognized deferred compensation cost	102,654		102,654
2017 LTIP | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	2,868	4,419	5,850	8,320
Share based compensation - Unrecognized deferred compensation cost	57,633		57,633
2019 LTIP | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	261	$ 635	578	$ 1,211
Share based compensation - Unrecognized deferred compensation cost	$ 305		$ 305

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
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