Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2013

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 June 30,					Six months ended June 30,
	2013			2012		2013			2012
	(In thousands, except per share amounts)
Earnings per share — Basic:
Earnings from continuing operations	$	62,575		46,767		$	103,377		81,643
Less: Distributed and undistributed earnings allocated to nonvested stock	(556		)	(590	)	(978		)	(1,062	)
Earnings from continuing operations available to common shareholders — Basic	$	62,019		46,177		$	102,399		80,581
Weighted average common shares outstanding — Basic	51,445			50,433		51,201			50,459
Earnings from continuing operations per common share — Basic	$	1.21		0.92		$	2.00		1.60
Earnings per share — Diluted:
Earnings from continuing operations	$	62,575		46,767		$	103,377		81,643
Less: Distributed and undistributed earnings allocated to nonvested stock	(552		)	(587	)	(972		)	(1,057	)
Earnings from continuing operations available to common shareholders — Diluted	$	62,023		46,180		$	102,405		80,586
Weighted average common shares outstanding — Basic	51,445			50,433		51,201			50,459
Effect of dilutive equity awards	478			264		457			351
Weighted average common shares outstanding — Diluted	51,923			50,697		51,658			50,810
Earnings from continuing operations per common share — Diluted	$	1.19		0.91		$	1.98		1.59
Anti-dilutive equity awards not included above	593			2,414		1,003			2,044