Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net earnings	$ 58,239	$ 48,096
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	33,460	33,170
Stock compensation expense	5,208	4,348
Deferred income taxes	(140)	(59)
(Recovery of)/provision for doubtful accounts	(12)	42
Foreign currency transaction (gain)/loss	(134)	304
Asset impairment charge	1,671	0
(Gain)/loss on disposal of assets	(3,093)	239
Changes in assets and liabilities
Accounts receivable	(9,226)	485
Inventories	(10,538)	682
Prepaid expenses and other current assets	1,315	(398)
Accounts payable and accrued expenses	5,426	(3,499)
Income taxes	(3,903)	(4,373)
Other	912	417
Net cash provided by operating activities	79,185	79,454
Cash flows from investing activities:
Cash paid for acquisitions, net of cash acquired	(17,399)	(17,393)
Capital expenditures	(13,253)	(17,676)
Proceeds from insurance	4,165	2,000
Proceeds from sale of assets	576	0
Intangible assets acquired	(438)	(408)
Net cash used in investing activities	(26,349)	(33,477)
Cash flows from financing activities:
Proceeds from revolving loan	210,750	22,000
Principal payments on revolving loan	(32,750)	(41,000)
Principal payments on long-term debt	(219,500)	(26,250)
Principal payment on acquired debt	(19)	(2,384)
Cash paid for financing costs	(1,374)	0
Proceeds from stock options exercised	8,133	9,524
Dividends paid	(13,428)	(12,069)
Purchase of treasury stock	(1,223)	(1,833)
Net cash used in financing activities	(49,411)	(52,012)
Effect of exchange rate changes on cash	(1,170)	2,133
Increase/(decrease) in cash and cash equivalents	2,255	(3,902)
Cash and cash equivalents beginning of period	40,416	38,643
Cash and cash equivalents end of period	$ 42,671	$ 34,741