Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2013

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

A summary of the Company’s option activity and related information for the three years ended December 31, 2013 is as follows:


	Number of Options			Weighted- Average Price		Weighted- Average Remaining Contractual Term (In Years)		Aggregate Intrinsic Value (In millions)
Balance At December 31, 2010		3,344,450			22.80
Options Granted		160,600			27.41
Options Exercised		(309,447	)		17.19
Options Cancelled/Forfeited/Expired		(109,584	)		25.01

Balance At December 31, 2011		3,086,019			23.52
Options Granted		128,500			29.63
Options Exercised		(327,498	)		17.95
Options Cancelled/Forfeited/Expired		(48,468	)		27.63

Balance At December 31, 2012		2,838,553			24.37
Options Granted		192,800			29.14
Options Exercised		(1,237,341	)		24.71
Options Cancelled/Forfeited/Expired		(21,950	)		25.20

Balance At December 31, 2013		1,772,062			24.68		2.74	$	26.8

Exercisable at December 31, 2013		1,328,237			23.73		1.98	$	21.3
Expected to Vest after December 31, 2013		390,566			27.81		5.06	$	4.6

Options Outstanding and Options Exercisable by Exercise Price with Weighted-Average Remaining Contractual Life for Options Outstanding and Weighted-Average Exercise Price

The following table indicates the options outstanding and options exercisable by exercise price with the weighted-average remaining contractual life for the options outstanding and the weighted-average exercise price at December 31, 2013:


	Options Outstanding						Options Exercisable
Exercise Price	Number Outstanding at December 31, 2013		Weighted- Average Remaining Contractual Life (Years)		Weighted- Average Grant Date Value		Number Exercisable at December 31, 2013		Weighted- Average Grant Date Value
$15–20		237,742		2.15	$	15.62		206,742	$	15.62
20–25		679,825		1.74		22.09		616,520		21.94
25–30		741,195		3.45		29.09		496,825		29.23
30–35		108,300		5.48		31.73		8,150		31.55
35–40		5,000		6.92		38.89		—		—

$15–40		1,772,062		2.74		24.68		1,328,237		23.73

Schedule of Weighted-Average Assumptions Used to Determine Fair Value of Option Granted

The fair value of each option granted was estimated on the date of grant using the Black-Scholes option-pricing model using the following weighted-average assumptions:


	Year Ended December 31,
	2013			2012			2011
Expected term (in years)		5.0			5.0			5.0
Expected volatility		50.3	%		52.1	%		51.6	%
Expected dividend yields		3.3	%		3.2	%		3.4	%
Risk-free interest rates		0.8	%		0.8	%		2.0	%

Summary of Company's Restricted Stock Units Activity

The following table summarizes the activity of the Company’s RSUs, which includes service-based and performance-based awards, for the three years ended December 31, 2013:


	Number of Shares			Weighted- Average Grant Date Fair Value		Aggregate Intrinsic Value (in millions)
Balance at December 31, 2010		110,200			23.61
RSUs Granted		125,800			27.99
RSUs Vested		(39,105	)		23.91
RSUs Cancelled/Forfeited/Expired		(9,085	)		25.36

Balance at December 31, 2011		187,810			26.33
RSUs Granted		109,200			31.37
RSUs Vested		(34,190	)		27.85
RSUs Cancelled/Forfeited/Expired		—			—

Balance at December 31, 2012		262,820			28.22
RSUs Granted		150,300			26.89
RSUs Vested		(87,840	)		24.98
RSUs Cancelled/Forfeited/Expired		(4,300	)		29.24

Balance at December 31, 2013		320,980			28.47	$	12.8