Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash Flows from Operating Activities
Net income	$ 6,345	$ 8,352
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	4,941	5,189
Stock compensation expense	2,371	2,097
Exit activity recoveries, non-cash	0	(727)
Provision for deferred income taxes	393	0
Other, net	2,456	353
Changes in operating assets and liabilities, excluding the effects of acquisitions:
Accounts receivable	(27,623)	4,947
Inventories	35	(8,907)
Other current assets and other assets	165	1,498
Accounts payable	5,332	(1,694)
Accrued expenses and other non-current liabilities	(31,903)	(33,314)
Net cash used in operating activities	(37,488)	(22,206)
Cash Flows from Investing Activities
Acquisitions, net of cash acquired	(264)	0
Net proceeds from sale of property and equipment	22	2,823
Purchases of property, plant, and equipment	(3,132)	(1,033)
Net cash (used in) provided by investing activities	(3,374)	1,790
Cash Flows from Financing Activities
Long-term debt payments	(210,000)	0
Payment of debt issuance costs	(1,235)	0
Purchase of treasury stock at market prices	(2,151)	(850)
Net proceeds from issuance of common stock	139	226
Net cash used in financing activities	(213,247)	(624)
Effect of exchange rate changes on cash	612	(499)
Net decrease in cash and cash equivalents	(253,497)	(21,539)
Cash and cash equivalents at beginning of year	297,006	222,280
Cash and cash equivalents at end of period	$ 43,509	$ 200,741