Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2011

Share-Based Compensation [Abstract]

Summary of nonvested shares

				Weighted-
				Average
				Grant Date
				Fair Value
Nonvested Shares	Shares			Per Share
Outstanding at January 1, 2011		50,032		$	58.40
Granted		68,727			37.83
Vested(1)		(9,474	)		56.76
Outstanding as of June 30, 2011		109,285		$	45.61

(1) The total shares vested include 2,198 shares that were then tendered to satisfy minimum statutory tax withholding requirements related to the restricted shares that have vested in accordance with the terms of the 2006 Plan. We accept the return of shares at the current quoted market price of the Company’s common stock to satisfy tax obligations.

Summary of nonvested and vested shares

	Shares Granted				Shares Vested
			Weighted-Average
			Grant Date					Total Vest Date
	Non-Vested Shares		Fair Value					Fair Value(1)
Six Months Ended June 30,	Issued		Per Share		Vested Shares			(in thousands)
2011		68,727	$	37.83		(9,474	)	$	370
2010		3,239		30.88		(16,358	)		474

(1) Total fair value of shares vested was calculated based on the quoted closing share price of the Company’s common stock on the NYSE on the day of vesting.

Summary of Restricted Stock Units

	Nonvested RSUs
				Weighted-Average
				Grant Date
				Fair Value
	Amount			Per Share		Vested RSUs			Total RSUs
Outstanding at January 1, 2011		125,754		$	29.88		588,068			713,822
Granted		107,673			37.94		—			107,673
Vested		(23,035	)		30.57		23,035			—
Issuance of dividend equivalents(1)							13,494			13,494
Canceled(2)							(8,448	)		(8,448	)
Outstanding as of June 30, 2011		210,392		$	33.93		616,149			826,541

(1)	RSUs issued as dividend equivalents are vested upon issuance.
(2)	We accept the return of RSUs, at the current quoted market price of the Company’s common stock, to satisfy minimum statutory tax-withholding requirements related to either RSUs that have vested or RSU dividend equivalents in accordance with the terms of the 2006 Plan.

Summary of Nonvested and Vested Restricted Stock Units

A summary of our RSU activity for the six months ended June 30, 2011 and 2010 is presented below:

	RSUs Granted				RSUs Vested
			Weighted-Average
			Grant Date				Total Vest-Date
	Non-Vested RSUs		Fair Value				Fair Value(1)
Six Months Ended June 30,	Issued		Per Share		Vested RSUs		(in thousands)
2011		107,673	$	37.94		23,035	$	897
2010		159,606		30.24		23,564		740

(1) Total fair value of RSUs vested was calculated based on the quoted closing share price of the Company’s common stock on the NYSE on the day of vesting.