CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net loss	$ (61,827,000)	$ (265,000)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	37,773,000	40,077,000
Share-based compensation expense	1,895,000	2,155,000
Non-cash facility closing and reorganization costs, net	284,000	1,091,000
Write-off of financing costs	3,755,000	0
Equity in (earnings) loss of unconsolidated affiliate	(1,955,000)	(1,900,000)
Deferred income taxes	(3,861,000)	809,000
Other, net	(3,465,000)	(291,000)
Changes in operating assets and liabilities:
Receivables, net	12,024,000	38,535,000
Inventories	(34,892,000)	(8,988,000)
Prepaid expenses and other assets	(4,413,000)	9,048,000
Accounts payable and accrued expenses	(17,364,000)	(41,318,000)
Net cash provided by (used in) operating activities	(72,046,000)	38,953,000
Cash flows from investing activities:
Capital spending	(26,518,000)	(16,508,000)
Proceeds from sale of fixed assets	1,928,000	4,179,000
Net cash used in investing activities	(24,590,000)	(12,329,000)
Cash flows from financing activities:
Debt repayments	(438,000)	(174,000)
Payments of financing costs	(7,625,000)	0
Proceeds from senior secured revolver	141,401,000	95,100,000
Payments for senior secured revolver	(142,901,000)	(91,200,000)
Proceeds from receivables securitization facility	400,000,000	665,000,000
Payments for receivables securitization facility	(295,000,000)	(675,000,000)
Repurchase of subsidiary's common stock	(28,000)	0
Cash dividends paid	0	(8,218,000)
Issuance of common stock, net of share repurchases for withholding taxes	(376,000)	(519,000)
Net cash provided by (used in) financing activities	95,033,000	(15,011,000)
Change in cash and cash equivalents	(1,603,000)	11,613,000
Cash and cash equivalents, beginning of period	24,176,000	16,512,000
Cash and cash equivalents, end of period	$ 22,573,000	$ 28,125,000