Equity (Tables)

6 Months Ended

Jun. 30, 2020

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, 2019	48,994	$	490	$	1,071,058	$	(698,930)	$	1,894	$	374,512
Net loss	—		—		—		(567)		—		(567)
Other comprehensive income (loss), net of tax	—		—		—		—		153		153
Share-based compensation expense	—		—		3,646		—		—		3,646
Net issuance under employee stock plans	434		4		(684)		—		—		(680)
Balance at March 31, 2020	49,428	$	494	$	1,074,020	$	(699,497)	$	2,047	$	377,064
Net loss	—		—		—		(8,302)		—		(8,302)
Other comprehensive income (loss), net of tax	—		—		—		—		(130)		(130)
Share-based compensation expense	—		—		2,974		—		—		2,974
Net issuance under employee stock plans	191		3		752		—		—		755
Extinguishment of equity component of repurchased 2023 Notes	—		—		(80)		—		—		(80)
Equity component of 2027 Notes	—		—		33,363		—		—		33,363
Purchase of capped calls	—		—		(10,313)		—		—		(10,313)
Balance at June 30, 2020	49,619	$	497	$	1,100,716	$	(707,799)	$	1,917	$	395,331

												Accumulated
								Additional				Other
	Common Stock			Treasury Stock				Paid-in		Accumulated		Comprehensive
	Shares	Amount		Shares		Amount		Capital		Deficit		Income		Total
	(in thousands)
Balance at December 31, 2018	48,547	$	485		523	$	(5,872)	$	1,061,325	$	(619,983)	$	1,820	$	437,775
Net loss	—		—		—		—		—		(18,530)		—		(18,530)
Other comprehensive income (loss), net of tax	—		—		—		—		—		—		38		38
Share-based compensation expense	—		—		—		—		3,157		—		—		3,157
Net issuance under employee stock plans	128		2		(523)		5,872		(6,303)		(213)		—		(642)
Balance at March 31, 2019	48,675	$	487		—	$	—	$	1,058,179	$	(638,726)	$	1,858	$	421,798
Net loss	—		—		—		—		—		(15,565)		—		(15,565)
Other comprehensive income (loss), net of tax	—		—		—		—		—		—		20		20
Share-based compensation expense	—		—		—		—		4,588		—		—		4,588
Net issuance under employee stock plans	296		3		—		—		182		—		—		185
Balance at June 30, 2019	48,971	$	490		—	$	—	$	1,062,949	$	(654,291)	$	1,878	$	411,026

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, 2019	$	1,861	$	33	$	1,894
Other comprehensive income (loss)		(30)		53		23
Balance - June 30, 2020	$	1,831	$	86	$	1,917