Equity Incentive Plans (Tables)

6 Months Ended

Jun. 30, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of the activity of stock option awards

A summary of the activity of stock option awards issued and outstanding under Company plans is as follows for the six months ended June 30, 2017:

	Shares		Wtd. Avg. Exercise Price		Wtd. Avg. Remaining Contractual Term (years)	Aggregate Intrinsic Value
	(in thousands)					(in thousands)
Options outstanding at December 31, 2016	1,211		$	20.65	7.14	$	5,466
Options granted	461		32.27
Options exercised	(308	)	19.81
Options forfeited/canceled/expired	(23	)	24.86
Options outstanding at June 30, 2017	1,341		$	24.76	7.81	$	7,675
Options vested and expected to vest at June 30, 2017	661		$	24.52	7.71	$	7,373
Options exercisable at June 30, 2017	585		$	21.53	6.44	$	4,946

Summary of the activity of restricted stock

A summary of the activity of restricted stock outstanding is as follows for the six months ended June 30, 2017:

	Shares		Wtd. Avg. Grant  Date Fair Value
	(in thousands)
Restricted stock outstanding at December 31, 2016	1,346		$	24.37
Granted	924		35.40
Vested	(435	)	23.16
Forfeited/canceled	(27	)	24.42
Restricted stock outstanding at June 30, 2017	1,808		$	30.44