Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2014

Schedule of stock option activity and related information

	Years Ended December 31,
	2014							2013					2012
	Options			Weighted Average Exercise Price		Weighted Average Intrinsic Value		Options			Weighted Average Exercise Price		Options			Weighted Average Exercise Price
	(Options in thousands)
Outstanding at beginning of year		1,029		$	41.66				1,064		$	33.37		1,272		$	30.43
Granted		114			57.58				379			54.78		415			37.67
Cancelled/Forfeitures		(306	)		44.19				(53	)		36.97		(33	)		31.18
Exercised		(342	)		36.48				(361	)		31.73		(590	)		30.19
Outstanding at end of year		495		$	47.34	$	16.10		1,029		$	41.66		1,064		$	33.37
Exercisable at end of year		128		$	40.04	$	23.40		249		$	32.35		360		$	30.91

Schedule of information about options outstanding

	Options Outstanding						Options Exercisable
Range of Exercise Prices	Number Outstanding		Weighted Average Remaining Contractual Life (years)		Weighted Average Exercise Price		Number Exercisable		Weighted Average Exercise Price
	(Options in thousands)
$26.34–$37.41		191		6.81	$	34.40		85	$	33.08
$40.17–$47.21		14		2.49		43.38		4		42.13
$54.76–$54.76		160		8.28		54.76		31		54.76
$57.47–$60.10		130		9.39		57.68		8		57.95
		495		7.84	$	47.34		128	$	40.04

Schedule of weighted average assumptions used to estimate the grant-date fair value of share issued under the 2004 Stock Incentive Plan

	Years Ended December 31,
	2014			2013			2012
Expected life (years)		6.0			6.0			6.0
Expected stock price volatility		37.5	%		40.3	%		41.2	%
Expected dividend yield		1.0	%		1.0	%		1.2	%
Risk-free interest rate		1.9	%		1.7	%		0.9	%

Schedule of nonvested restricted stock and deferred shares activity and related information

	Years Ended December 31,
	2014					2013					2012
	Shares			Weighted Average Grant Date Fair Value		Shares			Weighted Average Grant Date Fair Value		Shares			Weighted Average Grant Date Fair Value
	(Shares in thousands)
Unvested at beginning of year		260		$	45.58		237		$	35.45		153		$	30.33
Granted		151			56.79		142			54.80		170			37.62
Cancelled/Forfeitures		(95	)		46.83		(16	)		37.44		(8	)		30.66
Vested		(102	)		44.87		(103	)		35.25		(78	)		30.61
Unvested at end of year		214		$	53.74		260		$	45.58		237		$	35.45

Schedule of the Company's RSU activity and related information

	Years Ended December 31,
	2014							2013					2012
	RSUs			Weighted Average Purchase Price		Weighted Average Intrinsic Value		RSUs			Weighted Average Purchase Price		RSUs			Weighted Average Purchase Price
	(RSU's in thousands)
Outstanding at beginning of period		132		$	27.46				196		$	22.88		392		$	18.74
Granted		31			40.27				45			31.63		64
Cancelled/Forfeitures		(32	)		31.58				(14	)		28.35		(110	)
Settled		(51	)		25.41				(95	)		19.19		(150	)
Outstanding at end of period		80		$	32.08	$	31.36		132		$	27.46		196		$	22.88
Vested at end of period		31		$	27.96	$	35.48		42		$	25.30		81		$	20.36

Schedule of information about RSUs outstanding

	RSUs Outstanding				RSUs Vested
Range of Purchase Prices	Number Outstanding		Weighted Average Purchase Price		Number Vested		Weighted Average Purchase Price
	(RSUs in thousands)
$13.25–$19.87		1	$	19.87		1	$	19.87
$25.15–$26.51		28		26.45		20		26.42
$31.63–$40.27		51		35.45		10		31.63
		80	$	32.08		31	$	27.96

Schedule of weighted average assumptions used to estimate the grant-date fair value of restricted stock units

	Years Ended December 31,
	2014			2013			2012
Expected life (years)		3.0			3.0			3.0
Expected stock price volatility		31.2	%		34.1	%		38.3	%
Expected dividend yield		0.9	%		0.9	%		1.1	%
Risk-free interest rate		0.7	%		0.4	%		0.4	%

Performance Shares

Schedule of unvested performance shares activity and related information

	Year Ended December 31, 2014
	Shares			Weighted Average Grant Date Fair Value
	(Shares in thousands)
Unvested at beginning of year		—
Granted		117		$	57.02
Cancelled/Forfeitures		(10	)		57.47
Vested		—
Unvested at end of year		107		$	56.97