Shareholders' Equity (Tables)

6 Months Ended

Jun. 30, 2013

Shareholders' Equity [Abstract]

Schedule of Earnings Per Share Reconciliation [Table Text Block]

The reconciliation between basic and diluted earnings per share using the two-class method is presented as follows:

	Three Months Ended				Six Months Ended
	June 30, 2013		June 30, 2012		June 30, 2013		June 30, 2012
Basic EPS:
Net income	$	48,450	$	30,585	85,796		$	60,929
Less:
Cash dividends on 5.875% non-cumulative perpetual series A, preferred stock	1,469		—		2,399		$	—
Income allocated to participating securities	384		113		813		$	143
Net income attributable to common shareholders	$	46,597	$	30,472	$	82,584	$	60,786
Average common shares outstanding	159,158		110,598		135,204		110,422
Less: participating shares included in average shares outstanding	1,295		1,036		1,295		1,036
Average common shares outstanding used in basic EPS	157,863		109,562		133,909		109,386
Basic net income per share	$	0.30	$	0.28	$	0.62	$	0.56
Diluted EPS:
Income used in diluted earnings per share calculation	$	46,597	$	30,472	$	82,584	$	60,786
Average common shares outstanding	159,158		110,598		135,204		110,422
Add: common stock equivalents:
Stock option plans	119		—		60		—
Less: participating shares included in average shares outstanding	1,295		1,036		1,295		1,036
Average common and common stock equivalent shares outstanding	157,982		109,562		133,969		109,386
Diluted net income per share	$	0.29	$	0.28	$	0.62	$	0.56