Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2012

Earnings Per Share [Abstract]

Schedule of basic and diluted earnings per common share from continuing operations

The following table presents the calculation of basic and diluted earnings per common share from continuing operations:

	Three months ended September 30,					Nine months ended September 30,
	2012			2011		2012			2011
	(In thousands, except per share amounts)
Earnings per share — Basic:
Earnings from continuing operations	$	64,311		56,933		$	145,954		123,704
Less: Distributed and undistributed earnings allocated to nonvested stock	(814		)	(933	)	(1,891		)	(1,981	)
Earnings from continuing operations available to common shareholders — Basic	$	63,497		56,000		$	144,063		121,723
Weighted average common shares outstanding — Basic	50,381			50,426		50,433			50,533
Earnings from continuing operations per common share — Basic	$	1.26		1.11		$	2.86		2.41
Earnings per share — Diluted:
Earnings from continuing operations	$	64,311		56,933		$	145,954		123,704
Less: Distributed and undistributed earnings allocated to nonvested stock	(812		)	(928	)	(1,883		)	(1,972	)
Earnings from continuing operations available to common shareholders — Diluted	$	63,499		56,005		$	144,071		121,732
Weighted average common shares outstanding — Basic	50,381			50,426		50,433			50,533
Effect of dilutive equity awards	172			327		292			389
Weighted average common shares outstanding — Diluted	50,553			50,753		50,725			50,922
Earnings from continuing operations per common share — Diluted	$	1.26		1.10		$	2.84		2.39
Anti-dilutive equity awards and market-based restricted stock rights not included above	2,613			1,718		2,234			1,462