Asset Impairment Charges and Prepetition Facility Closing and Restructuring Costs - Facility Closing and Restructuring Costs (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restructuring Reserve [Roll Forward]
Charges and Adjustments	$ (17,017)	$ (74,992)	$ (24,913)
Cash charges
Restructuring Reserve [Roll Forward]
Accrued charges at beginning of period	14,581	8,469
Charges and Adjustments	(14,764)	(35,417)
Payments	(22,268)	(29,305)
Accrued charges at end of period	7,077	14,581	8,469
Cash charges \| Workforce reduction costs
Restructuring Reserve [Roll Forward]
Accrued charges at beginning of period	13,213	5,863
Charges and Adjustments	(4,920)	(27,460)
Payments	(11,603)	(20,110)
Accrued charges at end of period	6,530	13,213	5,863
Cash charges \| Shutdown costs
Restructuring Reserve [Roll Forward]
Accrued charges at beginning of period	0	0
Charges and Adjustments	(6,859)	(7,349)
Payments	(6,859)	(7,349)
Accrued charges at end of period	0	0	0
Cash charges \| Lease obligations after shutdown
Restructuring Reserve [Roll Forward]
Accrued charges at beginning of period	1,368	2,606
Charges and Adjustments	(320)	(143)
Payments	(1,141)	(1,381)
Accrued charges at end of period	547	1,368	2,606
Cash charges \| Other
Restructuring Reserve [Roll Forward]
Accrued charges at beginning of period	0	0
Charges and Adjustments	(2,665)	(465)
Payments	(2,665)	(465)
Accrued charges at end of period	0	0	$ 0
Other charges (gains)
Restructuring Reserve [Roll Forward]
Charges and Adjustments	(2,253)	(39,575)
Other charges (gains) \| Write-down of assets
Restructuring Reserve [Roll Forward]
Charges and Adjustments	(5,109)	(45,450)
Other charges (gains) \| (Gain) loss on sale of related assets
Restructuring Reserve [Roll Forward]
Charges and Adjustments	(2,950)	(6,062)
Other charges (gains) \| Other
Restructuring Reserve [Roll Forward]
Charges and Adjustments	$ (94)	$ (187)

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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