CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income	$ 35,469	$ 32,767
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	19,386	14,064
Long-lived asset impairment charge	772	0
Inventory step-up amortization	1,108	1,607
Deferred income taxes	(466)	(719)
Stock-based compensation	3,240	3,070
Income (Loss) from equity method investment	37	(51)
Changes in operating assets and liabilities:
Accounts receivable	(12,138)	(15,380)
Inventories	(11,795)	(150)
Accounts payable	18,071	10,930
Accrued payroll and other compensation	2,044	2,652
Accrued taxes	(2,826)	2,096
Other, net	(6,710)	(3,464)
Net cash provided by operating activities	46,192	47,422
Cash flows from investing activities:
Business acquisitions, net of cash acquired	(335)	(101,099)
Capital expenditures	(19,918)	(19,032)
Net cash used for investing activities	(20,253)	(120,131)
Cash flows from financing activities:
Proceeds from borrowings	0	85,000
Debt repayments	(35,674)	(10,320)
Common stock issued	409	611
Common stock repurchased	(2,592)	(809)
Net cash (used for) provided by financing activities	(37,857)	74,482
Effect of exchange rate changes on cash	4,690	(565)
(Decrease) Increase in cash and cash equivalents	(7,228)	1,208
Cash and cash equivalents at beginning of period	71,934	75,909
Cash and cash equivalents at end of period	$ 64,706	$ 77,117