Equity Incentive Plans (Tables)

6 Months Ended

Jun. 30, 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 issued and outstanding under Company plans is as follows for the six months ended June 30, 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	475		21.60
Options exercised	(77	)	19.24
Options forfeited/canceled/expired	(67	)	26.67
Options outstanding at June 30, 2018	1,561		$	24.19	7.71	$	7,376
Options vested and expected to vest at June 30, 2018	1,445		$	24.20	7.58	$	6,846
Options exercisable at June 30, 2018	688		$	23.68	6.06	$	3,629

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, 2018:

	Shares		Wtd. Avg. Grant  Date Fair Value
	(in thousands)
Restricted stock outstanding at January 1, 2018	1,770		$	30.47
Granted	896		22.80
Vested	(568	)	28.55
Forfeited/canceled	(28	)	26.04
Restricted stock outstanding at June 30, 2018	2,070		$	27.56