Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash Flows from Operating Activities
Net income (loss)	$ 23,448	$ (81,824)	$ (5,633)
Loss from discontinued operations	(28)	(32)	(4)
Income (loss) from continuing operations	23,476	(81,792)	(5,629)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	30,548	25,432	27,050
Intangible asset impairment	4,863	107,970	23,160
Loss on early note redemption	0	0	7,166
Stock compensation expense	3,891	3,150	2,564
Net (gain) loss on sale of assets	(6,431)	45	5
Restructuring charges (recoveries), non-cash	8,504	(455)	1,616
Benefit of deferred income taxes	(2,051)	(6,640)	(1,237)
Other, net	4,222	60	3,185
Changes in operating assets and liabilities (excluding the effects of acquisitions):
Accounts receivable	(17,215)	(14,323)	(1,020)
Inventories	22,271	(8,599)	(4,971)
Other current assets and other assets	759	(2,456)	(398)
Accounts payable	(5,157)	11,205	417
Accrued expenses and other non-current liabilities	19,004	(1,014)	8,396
Net cash provided by operating activities of continuing operations	86,684	32,583	60,304
Net cash used in operating activities of discontinued operations	0	(41)	(9)
Net cash provided by operating activities	86,684	32,542	60,295
Cash Flows from Investing Activities
Purchases of property, plant, and equipment	(12,373)	(23,291)	(14,940)
Cash paid for acquisitions, net of cash acquired	(140,621)	0	(5,536)
Net proceeds from sale of property and equipment	26,500	5,992	12,610
Other, net	1,154	277	0
Net cash used in investing activities	(125,340)	(17,022)	(7,866)
Cash Flows from Financing Activities
Long-term debt payments	(73,642)	(407)	(205,094)
Proceeds from long-term debt	73,242	0	210,000
Payment of note redemption fees	0	0	(3,702)
Payment of debt issuance costs	(1,166)	(35)	(3,899)
Purchase of treasury stock at market prices	(956)	(575)	(714)
Excess tax benefit from stock compensation	537	100	72
Net proceeds from issuance of common stock	1,801	595	648
Net cash used in financing activities	(184)	(322)	(2,689)
Effect of exchange rate changes on cash	(2,912)	(1,627)	(729)
Net (decrease) increase in cash and cash equivalents	(41,752)	13,571	49,011
Cash and cash equivalents at beginning of year	110,610	97,039	48,028
Cash and cash equivalents at end of year	$ 68,858	$ 110,610	$ 97,039