Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2011

Stock-Based Compensation

Summary Of Restricted Stock Activity

Restricted Stock	Grants			Weighted- Average Grant Date Fair Value		Aggregate Intrinsic Value ($000)
Outstanding at January 1, 2011 (non-vested)		346,996		$	29.31
Vesting and transfer of ownership to recipients		(158,528	)		31.18
Granted		102,710			58.23
Forfeited		(12,965	)		52.02
Outstanding at June 30, 2011 (non-vested)		278,213		$	37.86	$	16,904

Summary Of Performance Share Unit Activity

Performance Share Units	Grants
Outstanding at January 1, 2011 (non-vested)		278,093
Vesting and transfer of ownership to recipients		(53,962	)
Granted		61,491
Outstanding at June 30, 2011 (non-vested)		285,622