Shareholders' Equity (Tables)

6 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The reconciliation between basic and diluted EPS using the two-class method and treasury stock method is presented as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
(Dollars in thousands, except per share amounts)	2016		2015		2016		2015
Basic EPS:
Net income	$	58,309	$	56,584	$	112,445	$	113,723
Less:
Cash dividends on 5.875% non-cumulative perpetual series A, Preferred Stock	1,469		1,469		2,938		2,938
Income allocated to participating securities	496		467		955		937
Net income attributable to common shareholders	$	56,344	$	54,648	$	108,552	$	109,848
Weighted average Common Stock outstanding used in basic EPS	166,188		165,736		165,966		165,574
Basic net income per common share	$	0.34	$	0.33	$	0.65	$	0.66
Diluted EPS:
Income used in diluted earnings per common share calculation	$	56,344	$	54,648	$	108,552	$	109,848
Weighted average Common Stock outstanding used in basic EPS	166,188		165,736		165,966		165,574
Add: Common Stock equivalents
Employee stock award plans	619		541		597		515
Weighted average Common and Common Stock equivalent shares outstanding	166,807		166,277		166,563		166,089
Diluted net income per common share	$	0.34	$	0.33	$	0.65	$	0.66