Voluntary Reorganization Under Chapter 11 - Debtors-In-Possession Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Restructuring Cost and Reserve [Line Items]
Revenues, net	$ 120,310		$ 178,057	$ 325,003	$ 343,928
Cost of sales (exclusive of amortization of intangibles, included within operating expenses below)	89,258		110,073	199,407	222,431
GROSS PROFIT	31,052		67,984	125,596	121,497
Selling, general and administrative expenses	70,921		61,042	135,977	133,540
Research and development expenses	9,457		9,495	19,268	18,209
Amortization of intangibles	6,152		9,950	12,294	21,015
Impairment of goodwill	0	$ 267,900	0	267,923	15,955
Impairment of intangible assets	400		394	400	10,748
Litigation rulings, settlements and contingencies	0		74,469	(7,470)	74,879
TOTAL OPERATING EXPENSES	86,930		155,350	428,392	274,346
Operating (loss)	(55,878)		(87,366)	(302,796)	(152,849)
Amortization of deferred financing costs	0		(5,655)	(8,629)	(6,959)
Interest expense, net	(32,674)		(17,341)	(57,038)	(31,668)
Reorganization items, net	(5,809)		0	(5,809)	0
Other non-operating (expense) income, net	(65)		245	(326)	598
(LOSS) BEFORE INCOME TAXES	(94,426)		(110,117)	(374,598)	(190,878)
Income tax (benefit)/provision	(25,764)		1,482	(49,209)	2,902
NET (LOSS)	(68,662)		(111,599)	(325,389)	(193,780)
COMPREHENSIVE (LOSS):
Net (Loss)	(68,662)		(111,599)	(325,389)	(193,780)
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent	4		(3)	3	(3)
COMPREHENSIVE (LOSS)	(67,897)		(110,032)	(325,035)	(192,753)
Unrealized holding gain (loss) on available-for-sale securities, tax benefit (expense)	(1)		$ 1	(1)	$ 1
Debtor-In-Possession
Restructuring Cost and Reserve [Line Items]
Revenues, net	119,713			322,793
Cost of sales (exclusive of amortization of intangibles, included within operating expenses below)	83,764			190,291
GROSS PROFIT	35,949			132,502
Selling, general and administrative expenses	55,990			120,254
Research and development expenses	9,500			19,344
Amortization of intangibles	6,152			12,294
Impairment of goodwill	0			267,923
Impairment of intangible assets	400			400
Litigation rulings, settlements and contingencies	0			(7,470)
TOTAL OPERATING EXPENSES	72,042			412,745
Operating (loss)	(36,093)			(280,243)
Amortization of deferred financing costs	0			(8,629)
Interest expense, net	(33,473)			(58,422)
Reorganization items, net	(5,809)			(5,809)
Other non-operating (expense) income, net	(323)			(668)
(LOSS) BEFORE INCOME TAXES	(75,698)			(353,771)
Income tax (benefit)/provision	(25,735)			(49,180)
NET (LOSS)	(49,963)			(304,591)
COMPREHENSIVE (LOSS):
Net (Loss)	(49,963)			(304,591)
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent	4			3
COMPREHENSIVE (LOSS)	$ (49,959)			$ (304,588)