Equity Incentive Plans (Tables)

3 Months Ended

Mar. 31, 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 three months ended March 31, 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	(195	)	19.87
Options forfeited/canceled/expired	(19	)	24.43
Options outstanding at March 31, 2017	1,458		$	24.38	7.93	$	10,143
Options vested and expected to vest at March 31, 2017	1,346		$	24.08	7.82	$	9,729
Options exercisable at March 31, 2017	698		$	21.24	6.63	$	6,872

Summary of the activity of restricted stock

A summary of the activity of restricted stock outstanding is as follows for the three months ended March 31, 2017:

	Shares		Wtd. Avg. Grant  Date Fair Value
	(in thousands)
Restricted stock outstanding at December 31, 2016	1,346		$	24.37
Granted	622		34.68
Vested	(355	)	23.00
Forfeited/canceled	(11	)	23.49
Restricted stock outstanding at March 31, 2017	1,602		$	28.83