Incentive Plans (Tables)

12 Months Ended

Dec. 31, 2012

Incentive Plans [Abstract]

Summary of stock option award activity

The following is a summary of stock option award activity for 2012:

	Shares			Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Life		Aggregate Intrinsic Value
	(in thousands)					(in years)		(in thousands)
Outstanding – December 31, 2011		315		$	16.67
Granted		—			—
Exercised		(160	)		14.05
Cancelled		(3	)		25.99
Outstanding – December 31, 2012		152			19.30		3.3		2,019
Exercisable – December 31, 2012		152			19.30		3.3		2,019

Summary of restricted stock awards activity

The following is a summary of restricted stock award activity for 2012:

				Weighted Average
				Grant Date
	Shares			Fair Value
	(in thousands)
Non-vested – December 31, 2011		778		$	23.91
Granted		375			30.47
Vested		(383	)		22.65
Cancelled/Forfeited		(19	)		28.51
Non-vested – December 31, 2012		751			27.70