Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings Per Common Share

The following table sets forth the computation of basic and diluted earnings per common share for 2014 , 2013 and 2012:

(In thousands, except per share data)		2014		2013		2012
Net income		$	151,398	$	137,210	$	111,196
Less: Preferred stock dividends and discount accretion		6,323		8,395		9,093
Net income applicable to common shares—Basic	(A)	145,075		128,815		102,103
Add: Dividends on convertible preferred stock, if dilutive		6,323		8,325		8,955
Net income applicable to common shares—Diluted	(B)	151,398		137,140		111,058
Weighted average common shares outstanding	(C)	46,524		38,699		36,365
Effect of dilutive potential common shares:
Common stock equivalents		1,246		7,108		7,313
Convertible preferred stock, if dilutive		3,075		4,141		4,356
Total dilutive potential common shares		4,321		11,249		11,669
Weighted average common shares and effect of dilutive potential common shares	(D)	50,845		49,948		48,034
Net income per common share:
Basic	(A/C)	$	3.12	$	3.33	$	2.81
Diluted	(B/D)	$	2.98	$	2.75	$	2.31