CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net (loss) income	$ 55,241	$ 41,388	$ 11,062
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities:
Depreciation and amortization	8,324	8,254	8,505
(Recovery) provision for doubtful accounts	1,056	694	1,298
(Gain) loss on disposal of fixed assets	0	2,579	0
Stock-based compensation expense	16,555	13,737	10,664
Non-cash provision for restructuring	495	956	5,046
Non-cash interest expense	516	515	3,651
Gain on forgiveness of PPP loan	0	(7,800)	0
Gain (Loss) on Disposition of Other Assets	548	0	0
Unrealized foreign currency transaction losses (gains)	(788)	(2,101)	1,570
Benefit from deferred taxes	(10,649)	1,591	827
Changes in operating assets and liabilities:
Accounts receivable	(859)	875	(6,124)
Inventories	(1,059)	6,646	2,598
Prepaid expenses and other current assets	(7,238)	(1,156)	6,176
Accounts payable	19,049	5,032	(18,141)
Accrued expenses, compensation and benefits and other liabilities	(16,066)	69	10,432
Income taxes payable	(805)	(796)	(281)
Deferred revenue and contract assets	(16,301)	(7,994)	2,272
Net cash provided by operating activities	48,019	62,489	39,555
Cash flows from investing activities:
Purchases of property and equipment	(15,251)	(6,819)	(5,692)
Net cash used in investing activities	(15,251)	(6,819)	(5,692)
Cash flows from financing activities:
Proceeds from revolving line of credit	44,000	0	22,000
Repayment on revolving line of credit	(44,000)	0	(22,000)
Proceeds from long-term debt	20,000	180,000	7,800
Repayment of debt	(6,871)	(210,456)	(2,250)
Payments for repurchase of common stock	(52,993)	(24,787)	0
Payments for repurchase of outstanding notes	0	0	(28,867)
Proceeds from the issuance of common stock under employee stock plans	928	808	547
Common stock repurchases for tax withholdings for net settlement of equity awards	(12,822)	(19,557)	(2,365)
Prepayment penalty on extinguishment of debt	0	(1,169)	0
Partial retirement of the convertible notes conversion feature and capped call option unwind	0	0	875
Payments for credit facility issuance costs	(942)	(2,574)	(289)
Net cash used in financing activities	(52,700)	(77,735)	(24,549)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(1,772)	(1,016)	1,748
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	(21,704)	(23,081)	11,062
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents	60,556	83,637	72,575
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents	38,852	60,556	83,637
Supplemental information: [Abstract]
Cash and Cash Equivalents, at Carrying Value	35,247	56,818	79,899
Restricted cash	2,413	2,416	1,422
Restricted Cash, Noncurrent	1,192	1,322	2,316
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	38,852	60,556	83,637
Cash (refunded) paid for income taxes, net	1,697	1,034	(391)
Cash paid for interest	5,859	7,439	17,499
Non-cash transaction - property and equipment included in accounts payable or accruals	$ 806	$ 649	$ 0