Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Calculations for basic and diluted earnings per common share

		Three Months Ended March 31,
		2013		2012
		(In Thousands, except per share data)
Net income	$	47,388	$	42,633
Preferred stock dividends and discount accretion		(1,300)		(1,300)
Net income available to common equity	$	46,088	$	41,333
Common shareholder dividends		(13,377)		(8,683)
Unvested share-based payment awards		(107)		(40)
Undistributed earnings	$	32,604	$	32,610
Undistributed earnings allocated to common shareholders	$	32,375	$	32,455
Undistributed earnings allocated to unvested share-based payment awards		229		155
Undistributed earnings	$	32,604	$	32,610
Basic
Distributed earnings to common shareholders	$	13,377	$	8,683
Undistributed earnings allocated to common shareholders		32,375		32,455
Total common shareholders earnings, basic	$	45,752	$	41,138
Diluted
Distributed earnings to common shareholders	$	13,377	$	8,683
Undistributed earnings allocated to common shareholders		32,375		32,455
Total common shareholders earnings, diluted	$	45,752	$	41,138
Weighted average common shares outstanding		168,234		173,846
Effect of dilutive common stock awards		170		2
Diluted weighted average common shares outstanding		168,404		173,848
Basic earnings per common share	$	0.27	$	0.24
Diluted earnings per common share	$	0.27	$	0.24