Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2022

Share-Based Payment Arrangement [Abstract]

Summary of Stock Option Activity

A summary of the stock option activity is presented below (in thousands, except per share amounts):

	Options Outstanding
	Number of Shares Subject to Options			Weighted Average Exercise Price Per Share
Balance at December 31, 2021		447		$	25.22
Options granted		—		$	—
Options exercised		(4	)	$	14.58
Options canceled / forfeited / expired		(48	)	$	43.95
Balance at June 30, 2022		395		$	23.06

Summary of Restricted Stock Awards and Units

Information with respect to outstanding restricted stock awards and units (including both time-based vesting and performance-based vesting) as of June 30, 2022 is as follows (in thousands, except per share amounts):

	Restricted Stock and Restricted Stock Units
	Number of Shares Subject to Time- based Vesting			Number of Shares Subject to Performance- based Vesting			Total Number of Shares			Weighted Average Grant Date Fair Value Per Share
Balance at December 31, 2021		6,815			1,525			8,340		$	19.61
Awards and units granted		4,147			803			4,950		$	16.85
Awards and units vested / earned		(1,403	)		(335	)		(1,738	)	$	20.81
Awards and units canceled / forfeited		(616	)		(174	)		(790	)	$	19.05
Balance at June 30, 2022		8,943			1,819			10,762		$	18.19