Stock-Based Compensation (Tables) - 2008 Equity Incentive Plan

6 Months Ended

Jun. 30, 2019

Activity Under Equity Incentive Plans Related to Stock Options

Activity under the Company’s equity incentive plans related to stock options is set forth below (in thousands except per share amounts):

	Number of Options Outstanding			Weighted Average Exercise Price per Share
Balances at December 31, 2018		17,560		$	4.47
Granted		515			5.68
Exercised		(256	)		2.99
Forfeited/canceled		(139	)		4.99
Balances at June 30, 2019		17,680			4.52

Activity Under Equity Incentive Plans Related to RSUs

Activity under the Company’s equity incentive plans related to RSUs is set forth below (in thousands except per share amounts):

	Number of RSUs Unvested			Weighted Average Grant Date Fair Value per Share
Balances at December 31, 2018		2,001		$	4.56
Granted (1)		3,096			5.57
Vested		(850	)		4.60
Forfeited		(55	)		5.85
Balances at June 30, 2019		4,192			5.28

(1) Includes shares issuable under performance-based restricted stock unit awards.