Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2022

Stockholders Equity Note [Abstract]

Summary of Changes of Shareholders' Equity

The changes to the Company’s shareholders’ equity during the three months ended March 31, 2022, is as follows (in thousands, except share data):

							Accumulated
					Additional		Other						Total
	Common Stock				Paid-In		Comprehensive			Accumulated			Shareholders’
	Shares		Amount		Capital		Loss			Deficit			Equity
Balance at January 1, 2022		87,086,665	$	9	$	1,732,742	$	(3,428	)	$	(702,869	)	$	1,026,454
Exercise of stock options		107,623				2,281								2,281
Vesting of restricted stock units		466,497
Vesting of performance share units		38,291
Stock-based compensation cost						33,371								33,371
Shares issued under employee stock    purchase plan		85,926				8,006								8,006
Loss on translation adjustment								(1,347	)					(1,347	)
Net loss											(32,557	)		(32,557	)
Balance at March 31, 2022		87,785,002	$	9	$	1,776,400	$	(4,775	)	$	(735,426	)	$	1,036,208

The changes to the Company’s shareholders’ equity for the three months ended March 31, 2021, is as follows (in thousands, except share data):

							Accumulated
					Additional		Other						Total
	Common Stock				Paid-In		Comprehensive			Accumulated			Shareholders’
	Shares		Amount		Capital		Loss			Deficit			Equity
Balance at January 1, 2021		85,057,727	$	9	$	1,648,741	$	(1,339	)	$	(567,251	)	$	1,080,160
Exercise of stock options		296,226				5,529								5,529
Vesting of restricted stock units		346,008
Stock-based compensation cost						19,127								19,127
Shares issued under employee stock    purchase plan		60,064				7,088								7,088
Loss on translation adjustment								(390	)					(390	)
Net loss											(30,068	)		(30,068	)
Balance at March 31, 2021		85,760,025	$	9	$	1,680,485	$	(1,729	)	$	(597,319	)	$	1,081,446