Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net loss	$ (34,291)	$ (199,727)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	10,959	11,708
Amortization of deferred loan costs and debt discounts	2,040	2,055
Allowance for credit losses	352	(45)
Foreign currency loss	1,122	574
Deferred income taxes	(920)	(5,764)
Loss (gain) on asset disposal	(18)	26
Goodwill impairment charge	0	191,788
Non-cash compensation cost	2,330	1,530
Other, net	(1,219)	(965)
Changes in operating assets and liabilities:
Accounts receivable	(1,601)	14,357
Inventory	356	713
Prepaid expenses and other current assets	2,009	(5,382)
Accounts payable	2,192	8,297
Other accrued liabilities	327	(3,246)
Income taxes	(821)	(15,002)
Net cash (used in) provided by operating activities	(17,183)	917
Cash flows from investing activities:
Capital expenditures	(3,413)	(8,305)
Business acquisitions, net of cash acquired	0	(1,013)
Proceeds from disposal of assets	29	0
Other	0	6
Net cash used in investing activities	(3,384)	(9,312)
Cash flows from financing activities:
Payments for debt issuance costs	(2,027)	0
Taxes paid related to net share settlement of share-based awards	(101)	(349)
Other	(64)	(60)
Net cash provided by financing activities	16,808	18,494
Effect of exchange rate changes on cash and cash equivalents	1,517	(1,751)
Net (decrease) increase in cash and cash equivalents	(2,242)	8,348
Cash and cash equivalents at beginning of period	24,586	12,175
Cash and cash equivalents at end of period	22,344	20,523
Term Loan1
Cash flows from financing activities:
Payments under credit facility	0	(1,250)
Revolving Credit Facility
Cash flows from financing activities:
Proceeds from lines of credit	0	20,153
Letter of Credit | ABL Facility | Line of Credit
Cash flows from financing activities:
Proceeds from lines of credit	47,000	0
Borrowings under ABL Facility, net	28,000	0
Payments under credit facility	$ (56,000)	$ 0