Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2011

Earnings Per Share [Abstract]

Computation Of Basic And Diluted Earnings Per Common Share

he computation of basic and diluted earnings per common share is as follows:

	Year Ended December 31,
	2011			2010			2009
	(In thousands, except per share amounts)
Computation of Basic Earnings Per Share:
Net income	$	110,396		$	107,441		$	98,250
Income allocated to participating securities	(1,099		)	(1,109		)	(906		)
Net income available to common shareholders	$	109,297		$	106,332		$	97,344
Weighted average common shares outstanding—basic	58,862			58,953			59,514
Basic earnings per share	$	1.86		$	1.80		$	1.64
Computation of Diluted Earnings Per Share:
Net income	$	110,396		$	107,441		$	98,250
Income allocated to participating securities	(1,098		)	(1,108		)	(905		)
Net income available to common shareholders	$	109,298		$	106,333		$	97,345
Weighted average common shares outstanding—basic	58,862			58,953			59,514
Diluted effect of stock options and PVRSUs	72			88			156
Weighted average shares outstanding-diluted	58,934			59,041			59,670
Diluted earnings per share	$	1.85		$	1.80		$	1.63