CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net income (loss)	$ (500,804)	$ (327,358)	$ 61,588
Income from discontinued operations, net of tax	0	0	(11,291)
(Gain) loss on sale of discontinued operations, net of tax	70	(4,872)	(2,875)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	153,222	156,027	170,640
Non-cash lease expense	124,866	0	0
Share-based compensation expense	2,383	7,895	11,021
Non-cash prepetition facility closing and restructuring costs, net	2,275	39,575	4,031
Non-cash reorganization items	19,638	0	0
Impairment of goodwill and long-lived assets	177,357	204,414	30,668
Write-off of financing costs	3,755	0	1,080
Other operating income	0	(2,289)	0
Equity in (earnings) loss of unconsolidated affiliate	(4,835)	(7,939)	0
Deferred income taxes	(6,123)	(39,870)	(25,431)
Other, net	(4,507)	4,068	8,467
Changes in operating assets and liabilities, net of acquisitions:
Receivables, net	15,117	88,049	(5,606)
Inventories	4,883	23,205	12,714
Prepaid expenses and other assets	(21,801)	22,275	(11,625)
Accounts payable and accrued expenses	107,985	(8,138)	(63,520)
Income tax receivable	2,341	(2,080)	3,438
Operating lease liabilities	(123,158)	0	0
Contributions to company-sponsored pension plans	0	0	(38,500)
Net cash provided by (used in) operating activities	(47,336)	152,962	144,799
Cash flows from investing activities:
Payments for property, plant and equipment	(89,402)	(115,367)	(106,726)
Payments for acquisitions, net of cash acquired	0	(13,324)	(21,596)
Proceeds from sale of fixed assets	5,987	19,467	4,336
Other investments	0	0	(11,000)
Net cash used in investing activities	(83,415)	(109,224)	(134,986)
Cash flows from financing activities:
Repayments of debt	(1,834)	(1,053)	(143,323)
Payments of financing costs	(40,627)	(715)	(1,786)
Proceeds from DIP senior credit facility	70,000	0	0
Proceeds from senior secured revolver	1,294,501	351,800	326,900
Payments for senior secured revolver	(1,125,001)	(343,700)	(324,800)
Proceeds from receivables securitization facility	660,000	2,420,000	2,525,000
Payments for receivables securitization facility	(670,000)	(2,435,000)	(2,360,000)
Proceeds from issuance of subsidiary's common stock	0	444	0
Repurchase of subsidiary's common stock	(28)	0	0
Cash dividends paid	0	(27,405)	(32,737)
Issuance of common stock, net of share repurchases for withholding taxes	(425)	(445)	(535)
Net cash provided by (used in) financing activities	186,586	(36,074)	(11,281)
Increase (decrease) in cash and cash equivalents	55,835	7,664	(1,468)
Cash and cash equivalents, beginning of year	24,176	16,512	17,980
Cash and cash equivalents, end of year	$ 80,011	$ 24,176	$ 16,512