CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Operating activities:
Net loss	$ (206,083,000)	$ (67,007,000)
Adjustments to reconcile net loss to cash provided by (used in) operating activities:
Depreciation and amortization	113,880,000	118,210,000
Non-cash lease expense	93,958,000	0
Share-based compensation expense	3,230,000	7,245,000
Non-cash facility closing and reorganization costs, net	1,622,000	38,862,000
Impairment of long-lived assets	11,860,000	2,232,000
Write-off of financing costs	3,755,000	0
Other operating income	0	(2,289,000)
Equity in (earnings) loss of unconsolidated affiliate	(3,337,000)	(5,516,000)
Deferred income taxes	(5,553,000)	(26,727,000)
Other, net	(3,955,000)	(4,138,000)
Changes in operating assets and liabilities:
Receivables, net	80,677,000	65,058,000
Inventories	(13,668,000)	16,565,000
Prepaid expenses and other assets	5,576,000	9,231,000
Accounts payable and accrued expenses	(104,474,000)	(31,928,000)
Operating lease liabilities	(92,744,000)	0
Cash provided by (used in) operating activities	(115,256,000)	119,798,000
Investing activities:
Capital spending	(65,585,000)	(68,680,000)
Payments for acquisitions, net of cash acquired	0	(13,324,000)
Proceeds from sale of fixed assets	5,300,000	19,083,000
Cash used in investing activities	(60,285,000)	(62,921,000)
Financing activities:
Debt repayments	(1,296,000)	(759,000)
Payments of financing costs	(17,543,000)	0
Proceeds from senior secured revolver	1,143,701,000	236,200,000
Payments for senior secured revolver	(1,001,301,000)	(247,300,000)
Proceeds from receivables securitization facility	660,000,000	1,810,000,000
Payments for receivables securitization facility	(595,000,000)	(1,825,000,000)
Proceeds from issuance of subsidiary's common stock	0	354,000
Repurchase of subsidiary's common stock	(28,000)	0
Cash dividends paid	0	(24,663,000)
Issuance of common stock, net of share repurchases for withholding taxes	(412,000)	(436,000)
Cash provided by (used in) financing activities	188,121,000	(51,604,000)
Increase in cash and cash equivalents	12,580,000	5,273,000
Cash and cash equivalents, beginning of period	24,176,000	16,512,000
Cash and cash equivalents, end of period	$ 36,756,000	$ 21,785,000