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	$ (213,255)	$ (18,126)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	23,186	24,650
Amortization of deferred loan costs and debt discounts	4,191	3,743
Provision for doubtful accounts	1,122	889
Foreign currency loss	876	234
Deferred income taxes	(5,177)	2,466
Loss (gain) on asset disposal	447	(188)
Goodwill impairment charge	191,788	0
Non-cash compensation cost	2,946	6,082
Other, net	(2,226)	(1,196)
Changes in operating assets and liabilities:
Accounts receivable	36,033	3,534
Inventory	1,989	2,512
Prepaid expenses and other current assets	(3,750)	(5,312)
Accounts payable	4,023	4,627
Other accrued liabilities	(12,992)	(15,156)
Income taxes	(1,956)	(3,189)
Net cash provided by operating activities	27,245	5,570
Cash flows from investing activities:
Capital expenditures	(12,486)	(14,396)
Business acquisitions, net of cash acquired	(1,013)	0
Proceeds from disposal of assets	181	782
Other	54	89
Net cash used in investing activities	(13,264)	(13,525)
Cash flows from financing activities:
Net borrowings (payments) under revolving credit agreement	(5,198)	3,341
Payments under term loan	(2,500)	0
Contingent consideration payments	0	(428)
Debt issuance costs on Credit Facility	(1,841)	0
Taxes paid related to net share settlement of share-based awards	(349)	(351)
Other	(129)	(121)
Net cash provided by (used in) financing activities	(10,017)	2,441
Effect of exchange rate changes on cash and cash equivalents	(589)	(24)
Net increase (decrease) in cash and cash equivalents	3,375	(5,538)
Cash and cash equivalents at end of period	12,175	18,288
Cash and cash equivalents at beginning of period	$ 15,550	$ 12,750