Consolidated Statement of Cash Flows Statement - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash Flows from Operating Activities:
Net income (loss)	$ (39,800)	$ (33,400)	$ 69,280
Income (loss) from discontinued operations, net of income taxes	0	(4,740)	22,390
Income (Loss) from continuing operations	(39,800)	(28,660)	46,890
Adjustments to reconcile net income to net cash provided by operating activities:
Impairment of goodwill and indefinite-lived intangible assets	98,900	75,680	0
Loss on dispositions of property and equipment	1,870	2,330	3,770
Depreciation	24,390	22,570	21,380
Amortization of intangible assets	20,470	20,970	16,060
Amortization of debt issue costs	1,370	1,710	1,940
Deferred income taxes	(32,160)	(8,750)	(6,530)
Non-cash compensation expense	6,940	6,340	7,110
Excess tax benefits from stock based compensation	(640)	(590)	(1,180)
Debt financing and extinguishment expenses	0	1,970	3,360
(Increase) Decrease in receivables	7,990	5,300	(9,790)
(Increase) Decrease in inventories	5,180	3,250	(6,010)
Decrease in prepaid expenses and other assets	2,550	4,730	5,250
Increase (decrease) in accounts payable and accrued liabilities	(18,120)	(29,530)	11,830
Other, net	1,530	(750)	(1,560)
Net cash provided by operating activities of continuing operations	80,470	76,570	92,520
Net cash provided by (used for) operating activities of discontinued operations	0	(14,030)	30,880
Net cash provided by operating activities	80,470	62,540	123,400
Cash Flows from Investing Activities:
Capital expenditures	(31,330)	(28,660)	(23,000)
Acquisition of businesses, net of cash acquired	0	(10,000)	(382,880)
Net proceeds from dispositions of property and equipment	220	1,700	200
Net cash used for investing activities of continuing operations	(31,110)	(36,960)	(405,680)
Net cash used for investing activities of discontinued operations	0	(2,510)	(4,410)
Net cash used for investing activities	(31,110)	(39,470)	(410,090)
Cash Flows from Financing Activities:
Proceeds from borrowings on term loan facilities	0	275,000	275,000
Repayments of borrowings on term loan facilities	(13,850)	(444,890)	(8,910)
Proceeds from borrowings on revolving credit and accounts receivable facilities	402,420	1,129,840	1,063,960
Repayments of borrowings on revolving credit and accounts receivable facilities	(433,350)	(1,169,370)	(989,090)
Payments for deferred purchase price	(2,530)	(6,440)	0
Debt financing fees	0	(1,850)	(3,840)
Shares surrendered upon option and restricted stock vesting to cover tax	(1,590)	(2,770)	(2,910)
Proceeds from exercise of stock options	160	500	640
Excess tax benefits from stock based compensation	640	590	1,180
Distributions to noncontrolling interests	0	0	(580)
Payments for noncontrolling interests	0	0	(51,000)
Cash transferred to the Cequent businesses	0	(17,050)	0
Net cash provided by (used for) financing activities of continuing operations	(48,100)	(236,440)	284,450
Net cash provided by (used for) financing activities of discontinued operations	0	208,400	(340)
Net cash provided by (used for) financing activities	(48,100)	(28,040)	284,110
Increase (decrease) for the year	1,260	(4,970)	(2,580)
At beginning of year	19,450	24,420	27,000
At end of year	20,710	19,450	24,420
Supplemental disclosure of cash flow information:
Cash paid for interest	11,800	15,170	10,870
Cash paid for income taxes	$ 17,210	$ 30,580	$ 41,110