Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net loss	$ (222,328)	$ (25,183)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	34,709	36,700
Amortization of deferred loan costs and debt discounts	6,493	5,691
Provision for doubtful accounts	1,160	(440)
Foreign currency loss	1,628	348
Deferred income taxes	(3,132)	261
Loss (gain) on asset disposal	938	(137)
Goodwill impairment charge	191,788	0
Non-cash compensation cost	4,073	8,670
Other, net	(3,248)	(1,398)
Changes in operating assets and liabilities:
Accounts receivable	22,147	4,384
Inventory	2,744	5,030
Prepaid expenses and other current assets	(6,000)	(3,490)
Accounts payable	4,718	4,537
Other accrued liabilities	(13,838)	1,005
Income taxes	(1,687)	(2,959)
Net cash provided by operating activities	20,165	33,019
Cash flows from investing activities:
Capital expenditures	(16,684)	(23,199)
Business acquisitions, net of cash acquired	(1,013)	0
Proceeds from disposal of assets	198	802
Other	(53)	38
Net cash used in investing activities	(17,552)	(22,359)
Cash flows from financing activities:
Net borrowings (payments) under revolving credit agreement	10,802	(64,886)
Borrowings (payments) under term loan	(3,750)	49,745
Contingent consideration payments	0	(428)
Debt issuance costs	(1,841)	(1,475)
Taxes paid related to net share settlement of share-based awards	(350)	(776)
Other	(199)	(230)
Net cash provided by (used in) financing activities	4,662	(18,050)
Effect of exchange rate changes on cash and cash equivalents	161	(630)
Net increase (decrease) in cash and cash equivalents	7,436	(8,020)
Cash and cash equivalents at end of period	12,175	18,288
Cash and cash equivalents at beginning of period	$ 19,611	$ 10,268