UNAUDITED QUARTERLY FINANCIAL INFORMATION - Narrative (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
Impaired Long-Lived Assets Held and Used [Line Items]
Change in valuation allowance	$ 27,100								$ 27,117	$ 2,547	$ (3,294)
Loss on net asset exchange for the formation of the joint ventures			$ 1,800	$ 19,500					21,293	0	0
Gain on convertible debt transactions			3,200
Loss (gain) on forward contracts for the issuance of convertible preferred stock				16,800	$ (88,900)				16,787	(88,942)	0
Impairment of long-lived assets held-for-use					23,700
Reduction in sales	$ (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)
Long-lived asset impairments						$ 14,600			0	38,236	457,794
Loss on debt refinancing								$ 16,700	0	$ 16,740	0
Manufacturing / Wholesale
Impaired Long-Lived Assets Held and Used [Line Items]
Reduction in sales									$ (13,200)
Long-lived asset impairments											$ 24,300
Out-of-period adjustment | Manufacturing / Wholesale
Impaired Long-Lived Assets Held and Used [Line Items]
Reduction in sales					$ 2,500