Share-Based Payment Arrangements (Tables)

12 Months Ended

Dec. 31, 2015

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

Schedule of Option Activity Under Stock Option Plans

A summary of option activity for 2015 is presented below:

Options	Number of Shares			Weighted- Average Exercise Price ($)		Weighted- Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value ($000)
Outstanding at January 1, 2015		939,393		$	37.21
Exercised		(11,577	)		29.94
Cancelled/Forfeited		(70,586	)		36.15
Expired		(111,424	)		34.79
Outstanding at December 31, 2015		745,806		$	37.55		3.6	$	—
Exercisable at December 31, 2015		675,880		$	38.35		3.4	$	—

Schedule of Nonvested Restricted and Performance Shares

A summary of the status of the Company’s nonvested restricted and performance shares as of December 31, 2015 and changes during 2015 are presented below:

	Number of Shares			Weighted- Average Grant-Date Fair Value ($)
Nonvested at January 1, 2015		2,040,299		$	32.27
Granted		715,622			28.40
Vested		(399,850	)		32.40
Cancelled/Forfeited		(159,926	)		32.54
Nonvested at December 31, 2015		2,196,145		$	30.97