CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net loss	$ (42,946)	$ (31,935)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	34,775	36,692
(Benefit) provision for bad debts	(124)	215
Stock-based compensation	2,473	2,256
Impairment of intangible assets	0	992
Amortization of deferred financing costs	2,342	2,032
Interest income on interest rate swap	(1,809)	(1,070)
Accretion of contingent consideration	0	2,669
Change in fair value of contingent consideration	0	128
Deferred income taxes	18,086	(14,499)
Loss on sales of property and equipment	155	2
Changes in operating assets and liabilities:
Accounts receivable	(4,297)	(1,499)
Inventories	(2,281)	(4,424)
Prepaid expenses and other current assets	(6,784)	(1,429)
Accounts payable	(1,274)	3,855
Accrued expenses and other liabilities	2,344	(2,958)
Income taxes payable	2,846	(95)
Other assets and liabilities	(3,865)	384
Net cash used in operating activities	(359)	(8,684)
Cash flows from investing activities:
Cash paid for property and equipment	(2,131)	(3,271)
Other investments	0	(250)
Net cash used in investing activities	(2,131)	(3,521)
Cash flows from financing activities:
Net proceeds from issuance of convertible preferred stock	145,490	0
Costs associated with issuance of convertible preferred stock	(7,006)	0
Payment of preferred dividends	(2,200)	0
Proceeds from long-term debt	2,042	0
Repayment of long-term debt	(131,599)	(5,056)
Payment of deferred financing costs	(7,988)	0
Proceeds from issuance of stock under employee stock purchase plan	259	0
Net cash used in financing activities	(1,002)	(5,056)
Effect of exchange rate changes on cash and cash equivalents and restricted cash	(1,176)	1,682
Net decrease in cash and cash equivalents and restricted cash	(4,668)	(15,579)
Cash and cash equivalents and restricted cash, beginning of period	29,817	34,852
Cash and cash equivalents, end of period	25,149	19,273
Cash paid for:
Cash paid for interest	18,381	18,007
Cash paid for income taxes	1,733	2,469
Supplemental schedule of non-cash investing and financing activities:
Accrued purchases of property and equipment	$ 146	$ 62