Equity Incentive Plans (Tables)

3 Months Ended

Mar. 31, 2018

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 under Company plans is as follows for the three months ended March 31, 2018:

	Shares		Wtd. Avg. Exercise Price		Wtd. Avg. Remaining Contractual Term (years)	Aggregate Intrinsic Value
	(in thousands)					(in thousands)
Options outstanding at January 1, 2018	1,230		$	25.02	7.33	$	3,117
Options granted	—		—
Options exercised	(15	)	16.83
Options forfeited/canceled/expired	(22	)	29.35
Options outstanding at March 31, 2018	1,193		$	25.04	7.12	$	1,381
Options vested and expected to vest at March 31, 2018	1,141		$	24.89	7.06	$	1,368
Options exercisable at March 31, 2018	755		$	23.43	6.41	$	1,259

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, 2018:

	Shares		Wtd. Avg. Grant  Date Fair Value
	(in thousands)
Restricted stock outstanding at January 1, 2018	1,770		$	30.47
Granted	—		—
Vested	(562	)	28.55
Forfeited/canceled	(9	)	28.27
Restricted stock outstanding at March 31, 2018	1,199		$	31.10