Share-Based Payment Arrangements (Tables)

3 Months Ended

Mar. 31, 2016

Share-Based Payment Arrangements [Abstract]

Summary of Option Activity

				Weighted
				Average
		Weighted		Remaining
		Average		Contractual	Aggregate
	Number of	Exercise		Term	Intrinsic
Options	Shares	Price		(Years)	Value ($000)
Outstanding at January 1, 2016	745,806	$	37.55
Cancelled/forfeited	(49,610)		34.61
Expired	(137,139)		42.20
Outstanding at March 31, 2016	559,057	$	36.67	4.19	$	—
Exercisable at March 31, 2016	493,714	$	37.57	3.95	$	—

Summary of Nonvested Restricted and Performance Shares

			Weighted
			Average
	Number of		Grant Date
	Shares		Fair Value
Nonvested at January 1, 2016	2,196,145	$	30.97
Granted	71,924		23.50
Vested	(24,402)		32.00
Forfeited	(98,606)		31.46
Nonvested at March 31, 2016	2,145,061	$	30.66