Stock Plans (Tables)

12 Months Ended

Dec. 31, 2016

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

Share Based Compensation Activity

A summary of stock option activity under the Company’s equity incentive plans as of December 31, 2016 and changes during the year ended December 31, 2016 is presented below:

				Weighted
				Average
	Number of			Exercise
Stock Options	Shares			Price
Outstanding at January 1, 2016		206,509		$	29.55
Granted		—			—
Exercised		(186,718	)		30.38
Canceled		(341	)		46.03
Outstanding at December 31, 2016		19,450			21.31
Exercisable at December 31, 2016		19,450			21.31

A summary of the status of the Company’s Restricted Stock Awards as of December 31, 2016 and changes during the year ended December 31, 2016, is presented below:

				Weighted
				Average
				Grant-Date
Restricted Stock Awards	Shares			Fair Value
Nonvested shares at January 1, 2016		540,339		$	43.05
Granted		182,916			47.71
Vested		(220,863	)		38.79
Canceled		(400	)		48.40
Nonvested shares at December 31, 2016		501,992			46.52