REVENUE - Schedule of Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		4 Months Ended	5 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	May 01, 2019	Sep. 30, 2019	Sep. 30, 2018
Contract Liabilities
Beginning balance	$ 159,752	$ 160,369	$ 148,720	$ 151,773	$ 155,228
Revenue recognized, included in beginning balance	(74,875)	(73,190)	(76,473)	(87,098)	(101,456)
Additions, net of revenue recognized during period, and other	75,660	67,973	79,228	95,862	101,380
Ending balance	$ 160,537	$ 155,152	$ 151,773	$ 160,537	$ 155,152