Voluntary Reorganization Under Chapter 11 - Debtors-In-Possession Cash Flow Statement (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Net (Loss)	$ (68,662)		$ (111,599)	$ (325,389)	$ (193,780)
Depreciation and amortization				27,493	36,123
Amortization of debt financing costs				8,629	6,959
Debt financing costs (debtor-in-possession)				1,950	0
Impairment of intangible assets				400	10,748
Impairment of goodwill	0	$ 267,900	0	267,923	15,955
Non-cash stock compensation expense				7,778	10,308
Non-cash interest expense				3,289	913
Deferred income taxes, net				(225)	366
Other				(83)	(29)
Changes in operating assets and liabilities:
Other non-current assets				(7,347)	440
Trade accounts receivable				2,929	(19,496)
Inventories, net				(14,882)	11,186
Prepaid expenses and other current assets				(1,893)	4,985
Income taxes receivable				(48,993)	992
Trade accounts payable				(1,749)	2,078
Accrued legal fees and contingencies				(10,734)	68,662
Uncertain tax liabilities				108	2,526
Accrued expenses and other liabilities				6,099	1,526
NET CASH (USED IN) OPERATING ACTIVITIES				(71,059)	(29,311)
INVESTING ACTIVITIES:
Proceeds from disposal of assets				386	0
Purchases of property, plant and equipment				(18,944)	(16,863)
NET CASH (USED IN) INVESTING ACTIVITIES				(18,558)	(16,950)
FINANCING ACTIVITIES:
Proceeds from borrowing (debtor-in-possession)				30,000	0
Debt financing costs (debtor-in-possession)				(1,950)	0
Stock compensation plan withholdings for employee taxes				(98)	(269)
NET CASH PROVIDED BY / (USED IN) FINANCING ACTIVITIES				27,942	(607)
Effect of exchange rate changes on cash and cash equivalents				(66)	141
(DECREASE) IN CASH AND CASH EQUIVALENTS				(61,741)	(46,727)
Cash, cash equivalents, and restricted cash at beginning of period		145,607		145,607	225,794	$ 225,794
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT END OF PERIOD	83,866		$ 179,067	83,866	$ 179,067	145,607
Debtor-In-Possession
Restructuring Cost and Reserve [Line Items]
Net (Loss)	(49,963)			(304,591)
Depreciation and amortization				25,988
Amortization of debt financing costs				8,629
Debt financing costs (debtor-in-possession)				1,950
Impairment of intangible assets				400
Impairment of goodwill	0			267,923
Non-cash stock compensation expense				7,778
Non-cash interest expense				3,289
Deferred income taxes, net				(225)
Other				37
Changes in operating assets and liabilities:
Other non-current assets				(7,317)
Trade accounts receivable				1,849
Inventories, net				(12,411)
Prepaid expenses and other current assets				(1,403)
Income taxes receivable				(48,993)
Trade accounts payable				4,875
Accrued legal fees and contingencies				(10,734)
Uncertain tax liabilities				108
Accrued expenses and other liabilities				4,635
NET CASH (USED IN) OPERATING ACTIVITIES				(58,213)
INVESTING ACTIVITIES:
Proceeds from disposal of assets				8
Purchases of property, plant and equipment				(9,996)
NET CASH (USED IN) INVESTING ACTIVITIES				(9,988)
FINANCING ACTIVITIES:
Proceeds from borrowing (debtor-in-possession)				30,000
Inter-company funding				(19,726)
Debt financing costs (debtor-in-possession)				(1,950)
Stock compensation plan withholdings for employee taxes				(98)
NET CASH PROVIDED BY / (USED IN) FINANCING ACTIVITIES				8,226
Effect of exchange rate changes on cash and cash equivalents				0
(DECREASE) IN CASH AND CASH EQUIVALENTS				(59,975)
Cash, cash equivalents, and restricted cash at beginning of period		$ 138,606		138,606
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT END OF PERIOD	$ 78,631			$ 78,631		$ 138,606