Stock-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2016

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Schedule of Non-Vested Restricted Stock Activity

The following table summarizes the non-vested restricted stock activity for the year ended December 31, 2016:

			Weighted
			Average
			Grant Date
Non-vested restricted stock	Shares		Fair Value
Non-vested January 1, 2016		696,097	$	37.02
Granted		420,368	$	33.46
Vested		(219,951)	$	36.34
Forfeited		(115,574)	$	35.75
Non-vested at December 31, 2016		780,940	$	35.48

Schedule of Restricted Stock Granted

The following table summarizes the restricted stock granted during the respective years:

Restricted stock grants	2016		2015		2014
Employees		394,243		316,531		273,910
Outside directors		26,125		22,000		20,000
Total		420,368		338,531		293,910
Weighted average grant date fair value	$	33.46	$	37.60	$	39.66
Vesting period	3-5 years		3-5 years		3-5 years