Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities
Net loss	$ (25,297)	$ (30,494)
Adjustments to reconcile net loss to net cash provided by (used by) operating activities:
Depreciation and amortization	46,349	30,539
Amortization of debt issuance costs	2,354	2,313
Loss on extinguishment of debt and write-off of debt issuance costs	2,699	12,938
Share of net income from joint venture, net of cash dividends received	(66)	(1,478)
Compensation expense from issuance of share-based awards	1,979	2,334
Deferred income taxes	(6,762)	(34)
Other	540	214
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(17,723)	(17,256)
Inventories	(5,826)	(10,742)
Accounts payable	(1,405)	(4,653)
Income taxes receivable and payable, net	315	(8,695)
Other	7,210	5,589
Net cash provided by (used by) operating activities	4,367	(19,425)
Cash flows from investing activities
Acquisition of property, plant and equipment	(28,994)	(28,888)
Proceeds from liquidation of short-term investment	8,000	0
Cash paid to acquire businesses, net of cash received	0	(393,481)
Other	1,223	625
Net cash used by investing activities	(19,771)	(421,744)
Cash flows from financing activities
Cash paid for debt issuance or prepayment costs	(967)	(16,703)
Dividends paid	(5,913)	(3,854)
Proceeds from long-term debt	46,630	270,000
Repayment of long-term debt	(12,055)	(16,000)
Proceeds from (repayments of) short-term debt, net	(6,218)	9,703
Other	(1,759)	(2,410)
Net cash provided by financing activities	19,718	240,736
Effect of exchange rate changes on cash flows	(225)	(806)
Net change in cash and cash equivalents	4,089	(201,239)
Cash and cash equivalents at beginning of period	17,988	224,446
Cash and cash equivalents at end of period	$ 22,077	$ 23,207