Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2011

Earnings Per Share [Abstract]

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

	Three months ended June 30,						Six months ended June 30,
	2011			2010			2011			2010
	(In thousands, except per share amounts)
Earnings per share — Basic:
Earnings from continuing operations	$	40,914			30,600		$	66,771			43,472
Less: Distributed and undistributed earnings allocated to nonvested stock		(649	)		(432	)		(1,054	)		(584	)
Earnings from continuing operations available to common shareholders — Basic	$	40,265			30,168		$	65,717			42,888
Weighted average common shares outstanding — Basic		50,546			52,044			50,586			52,362
Earnings from continuing operations per common share — Basic	$	0.80			0.58		$	1.30			0.82
Earnings per share — Diluted:
Earnings from continuing operations	$	40,914			30,600		$	66,771			43,472
Less: Distributed and undistributed earnings allocated to nonvested stock		(645	)		(432	)		(1,049	)		(584	)
Earnings from continuing operations available to common shareholders — Diluted	$	40,269			30,168		$	65,722			42,888
Weighted average common shares outstanding — Basic		50,546			52,044			50,586			52,362
Effect of dilutive options		457			217			421			120
Weighted average common shares outstanding — Diluted		51,003			52,261			51,007			52,482
Earnings from continuing operations per common share — Diluted	$	0.79			0.58		$	1.29			0.82
Anti-dilutive options not included above		1,224			1,391			1,333			1,853