SEGMENTS - Key Financial Information of the Segments (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue:
Revenue	$ 470,351	$ 499,076	$ 533,997	$ 564,764	$ 547,861	$ 580,185	$ 617,944	$ 607,533	$ 2,068,188	$ 2,353,523	$ 2,480,962
Operating income (loss):
Operating income (loss)	13,889	$ 26,654	48,718	35,482	(2,881)	$ 19,961	$ 48,884	$ 46,389	124,743	112,353	(256,816)
Unallocated corporate and other costs
Loss on net asset exchange for the formation of the joint ventures			$ 1,800	19,500					21,293	0	0
Interest expense, net									106,709	127,080	64,221
Gain on convertible debt and debt refinancing costs									(3,214)	0	(10,996)
Loss on debt refinancing									0	16,740	0
Loss (gain) on forward contracts for the issuance of convertible preferred stock				$ 16,800	(88,900)				16,787	(88,942)	0
Income (loss) before income taxes and income from equity method investments									4,461	57,475	(310,041)
Depreciation and amortization:
Depreciation and amortization									35,422	47,105	56,809
Capital expenditures:
Capital expenditures									15,151	18,981	32,123
Total assets:
Total assets	1,650,587				1,527,850				1,650,587	1,527,850
Property, plant, and equipment, net:
Property, plant, and equipment, net	86,916				155,095				86,916	155,095
Right-of-use assets	350,579								350,579
United States
Revenue:
Revenue									1,962,650	2,205,669	2,332,880
Property, plant, and equipment, net:
Property, plant, and equipment, net	83,899				150,689				83,899	150,689
Foreign
Revenue:
Revenue									105,538	147,854	148,082
Property, plant, and equipment, net:
Property, plant, and equipment, net	3,017				4,406				3,017	4,406
Manufacturing / Wholesale
Revenue:
Revenue									13,200
Operating Segment
Revenue:
Revenue									2,103,693	2,617,734	2,646,275
Operating income (loss):
Operating income (loss)									247,570	217,891	(133,942)
Operating Segment | U.S. and Canada
Revenue:
Revenue									1,822,327	1,951,220	2,018,931
Operating income (loss):
Operating income (loss)									151,037	94,663	(244,104)
Depreciation and amortization:
Depreciation and amortization									23,779	27,685	35,571
Capital expenditures:
Capital expenditures									10,985	10,705	20,614
Total assets:
Total assets	1,142,588				867,977				1,142,588	867,977
Operating Segment | International
Revenue:
Revenue									158,167	191,409	177,778
Operating income (loss):
Operating income (loss)									55,380	60,367	60,987
Depreciation and amortization:
Depreciation and amortization									2,292	2,487	2,455
Capital expenditures:
Capital expenditures									191	759	277
Total assets:
Total assets	201,996				200,128				201,996	200,128
Operating Segment | Manufacturing / Wholesale
Revenue:
Revenue									123,199	475,105	449,566
Operating income (loss):
Operating income (loss)									41,153	62,861	49,175
Depreciation and amortization:
Depreciation and amortization									3,056	9,790	10,238
Capital expenditures:
Capital expenditures									184	3,459	2,862
Total assets:
Total assets	156,043				288,163				156,043	288,163
Intersegment
Revenue:
Revenue									(35,505)	(264,211)	(231,495)
Intersegment | Manufacturing / Wholesale
Revenue:
Revenue									(35,505)	(264,211)	(231,495)
Reportable Legal Entities | Manufacturing / Wholesale
Revenue:
Revenue									87,694	210,894	218,071
Corporate and other
Revenue:
Revenue									0	0	66,182
Operating income (loss):
Operating income (loss)									(122,827)	(105,538)	(122,874)
Unallocated corporate and other costs
Corporate costs									(98,221)	(105,378)	(102,114)
Loss on net asset exchange for the formation of the joint ventures									(21,293)	0	0
Other loss, net									(3,313)	(160)	(20,760)
Depreciation and amortization:
Depreciation and amortization									6,295	7,143	8,545
Capital expenditures:
Capital expenditures									3,791	4,058	$ 8,370
Total assets:
Total assets	$ 149,960				$ 171,582				$ 149,960	$ 171,582