Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities
Net loss	$ (269,939)	$ (26,801)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	46,385	46,349
Amortization of debt issuance costs	3,348	2,354
Goodwill impairment	239,699	0
Loss on extinguishment of debt and write-off of debt issuance costs	0	2,699
Share of net income from joint venture, net of cash dividends received	(656)	(66)
Compensation expense from issuance of share-based awards	2,707	1,979
Deferred income taxes	(8,889)	(8,093)
Other	(2,207)	540
Changes in operating assets and liabilities:
Accounts receivable	23,485	(17,723)
Inventories	(4,327)	(4,839)
Accounts payable	(12,391)	(1,405)
Income taxes receivable and payable, net	(12,897)	1,646
Other	11,544	7,727
Net cash provided by operating activities	15,862	4,367
Cash flows from investing activities
Acquisition of property, plant and equipment	(15,624)	(28,994)
Payments for (Proceeds from) Short-term Investments	0	8,000
Proceeds from sale of property, plant, and equipment	3,112	1,949
Other	0	(726)
Net cash used in investing activities	(12,512)	(19,771)
Cash flows from financing activities
Cash paid for debt issuance costs	(286)	(967)
Dividends paid	0	(5,913)
Proceeds from long-term debt	64,716	46,630
Repayment of long-term debt	(9,078)	(12,055)
Proceeds from (repayments of) short-term debt, net	(411)	(6,218)
Other	(1,523)	(1,759)
Net cash provided by financing activities	53,418	19,718
Effect of exchange rate changes on cash flows	(5,776)	(225)
Net change in cash and cash equivalents	50,992	4,089
Cash and cash equivalents at beginning of period	31,703	17,988
Cash and cash equivalents at end of period	$ 82,695	$ 22,077