Earnings Per Common Share (Tables)

12 Months Ended

Dec. 31, 2011

Earnings Per Common Share [Abstract]

Computation Of Basic And Diluted Earnings Per Share

	Year Ended December 31,
	2011		2010		2009
	(In thousands, except per share data)
Numerator:
Income available to common stockholders and holders of dilutive securities	$	177,311	$	181,574	$	136,096
Denominator:
Weighted average shares		89,678		95,295		102,114
Effect of dilutive securities:
Stock options and stock awards		2,256		1,835		632
Adjusted weighted average shares		91,934		97,130		102,746
Per share amount:
Basic	$	1.98	$	1.91	$	1.33
Diluted	$	1.93	$	1.87	$	1.32