Equity (Tables)

6 Months Ended

Jun. 30, 2022

Stockholders' Equity

Schedule of Stockholders' Equity

								Accumulated
				Additional				Other
	Common Stock			Paid-in		Accumulated		Comprehensive
	Shares	Amount		Capital		Deficit		Income		Total
	(in thousands)
Balance at December 31, 2021	50,653	$	507	$	1,116,921	$	(681,283)	$	1,483	$	437,628
Cumulative effect of change in accounting principle - adoption of ASU 2020-06	—		—		(56,801)		12,541		—		(44,260)
Net income	—		—		—		13,330		—		13,330
Other comprehensive income (loss), net of tax	—		—		—		—		(822)		(822)
Share-based compensation expense	—		—		4,481		—		—		4,481
Net issuance under employee stock plans	590		6		(6,793)		—		—		(6,787)
Balance at March 31, 2022	51,243	$	513	$	1,057,808	$	(655,412)	$	661	$	403,570
Net income	—		—		—		9,655		—		9,655
Other comprehensive income (loss), net of tax	—		—		—		—		(272)		(272)
Share-based compensation expense	—		—		6,278		—		—		6,278
Net issuance under employee stock plans	182		2		1,504		—		—		1,506
Balance at June 30, 2022	51,425	$	515	$	1,065,590	$	(645,757)	$	389	$	420,737

								Accumulated
				Additional				Other
	Common Stock			Paid-in		Accumulated		Comprehensive
	Shares	Amount		Capital		Deficit		Income		Total
	(in thousands)
Balance at December 31, 2020	49,724	$	497	$	1,113,352	$	(707,321)	$	1,846	$	408,374
Net income	—		—		—		2,494		—		2,494
Other comprehensive income (loss), net of tax	—		—		—		—		(19)		(19)
Share-based compensation expense	—		—		3,237		—		—		3,237
Net issuance under employee stock plans	459		5		(1,630)		—		—		(1,625)
Balance at March 31, 2021	50,183	$	502	$	1,114,959	$	(704,827)	$	1,827	$	412,461
Net income	—		—		—		6,348		—		6,348
Other comprehensive income (loss), net of tax	—		—		—		—		(24)		(24)
Share-based compensation expense	—		—		4,367		—		—		4,367
Net issuance under employee stock plans	166		1		582		—		—		583
Balance at June 30, 2021	50,349	$	503	$	1,119,908	$	(698,479)	$	1,803	$	423,735

Schedule of the changes in the balances of each component of AOCI, net of tax

			Unrealized
			Gains (Losses)
	Foreign		on Available
	Currency		for Sale
	Translation		Securities		Total
	(in thousands)
Balance - December 31, 2021	$	1,814	$	(331)	$	1,483
Other comprehensive income (loss)		(51)		(1,043)		(1,094)
Balance - June 30, 2022	$	1,763	$	(1,374)	$	389