EQUITY-BASED COMPENSATION - Summary of Unvested Equity-Based Awards and Changes (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 01, 2020
Number of Units
Ending balance (in shares)	2,000,000
Converted OCGH Units
Number of Units
Beginning balance (in shares)	2,700,585	2,556,316	2,128,400
Granted (in shares)	1,494,324	1,164,601	1,285,548
Vested (in shares)	(975,072)	(920,439)	(837,254)
Restructuring (in shares)	(2,380,641)
Forfeited (in shares)	(107,955)	(99,893)	(20,378)
Ending balance (in shares)	731,241	2,700,585	2,556,316
Weighted Average Grant Date Fair Value
Beginning balance (in dollars per share)	$ 42.76	$ 44.05	$ 41.86
Granted (in dollars per share)	49.56	39.61	45.42
Vested (in dollars per share)	43.06	42.57	40.57
Restructuring (in dollars per share)	45.83
Forfeited (in dollars per share)	44.63	40.59	45.59
Ending balance (in dollars per share)	$ 45.99	$ 42.76	$ 44.05
OCGH Units
Number of Units
Beginning balance (in shares)	1,864,049	2,158,835	2,337,953
Granted (in shares)	1,873,155	124,051	274,018
Vested (in shares)	(515,534)	(418,837)	(453,136)
Restructuring (in shares)	(2,600,264)
Forfeited (in shares)	0	0	0
Ending balance (in shares)	621,406	1,864,049	2,158,835
Weighted Average Grant Date Fair Value
Beginning balance (in dollars per share)	$ 39.83	$ 39.79	$ 39.85
Granted (in dollars per share)	39.95	31.80	37.15
Vested (in dollars per share)	35.44	37.23	38.50
Restructuring (in dollars per share)	40.87
Forfeited (in dollars per share)	0	0	0
Ending balance (in dollars per share)	$ 39.49	$ 39.83	$ 39.79
Forecast | Converted OCGH Units
Weighted Average Grant Date Fair Value
Valuation assumptions, price per unit (in usd per share)				$ 49.00