Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2012

Segment Reporting [Abstract]

Selected segment information

Segment Income Statement Data
	($ in Thousands)		Commercial Banking		Consumer Banking			Risk Management and Shared Services			Consolidated Total
2012
Net interest income		$	283,411		$	307,661		$	34,920		$	625,992
Noninterest income			88,969			209,081			15,240			313,290
	Total revenue		372,380			516,742			50,160			939,282
Credit provision *			46,008			20,018			(63,026)			3,000
Noninterest expense			215,939			427,736			38,148			681,823
Income before income taxes			110,433			68,988			75,038			254,459
Income tax expense			38,651			24,146			12,689			75,486
Net income		$	71,782		$	44,842		$	62,349		$	178,973
Return on average allocated capital (ROT1CE) **			9.5	%		7.6	%		11.7	%		9.5	%
2011
Net interest income		$	255,069		$	329,249		$	28,513		$	612,831
Noninterest income			88,108			180,758			4,253			273,119
	Total revenue		343,177			510,007			32,766			885,950
Credit provision *			40,259			17,988			(6,247)			52,000
Noninterest expense			191,111			438,572			20,840			650,523
Income before income taxes			111,807			53,447			18,173			183,427
Income tax expense (benefit)			39,133			18,706			(14,111)			43,728
Net income		$	72,674		$	34,741		$	32,284		$	139,699
Return on average allocated capital (ROT1CE) **			9.9	%		6.3	%		1.7	%		6.7	%
2010
Net interest income		$	283,235		$	320,430		$	30,114		$	633,779
Noninterest income			80,289			222,690			32,483			335,462
	Total revenue		363,524			543,120			62,597			969,241
Credit provision *			42,198			16,665			331,147			390,010
Noninterest expense			173,664			415,688			30,907			620,259
Income (loss) before income taxes			147,662			110,767			(299,457)			(41,028)
Income tax expense (benefit)			51,681			38,768			(130,621)			(40,172)
Net income (loss)		$	95,981		$	71,999		$	(168,836)		$	(856)
Return on average allocated capital (ROT1CE) **			10.6	%		13.9	%		(148.3)	%		(1.9)	%
Segment Balance Sheet Data
	($ in Thousands)		Commercial Banking		Consumer Banking			Risk Management and Shared Services			Consolidated Total
2012
Average earning assets		$	7,448,789		$	7,275,028		$	4,889,960		$	19,613,777
Average loans			7,442,314			7,275,028			24,443			14,741,785
Average deposits			4,546,658			9,556,041			1,479,670			15,582,369
Average allocated capital (T1CE) **		$	756,596		$	593,202		$	488,626		$	1,838,424
2011
Average earning assets		$	6,306,204		$	6,953,035		$	6,183,024		$	19,442,263
Average loans			6,302,266			6,953,035			23,547			13,278,848
Average deposits			3,525,584			9,633,821			1,241,722			14,401,127
Average allocated capital (T1CE) **		$	730,741		$	548,539		$	433,875		$	1,713,155
2010
Average earning assets		$	6,863,336		$	6,314,786		$	7,390,373		$	20,568,495
Average loans			6,857,471			6,314,786			14,455			13,186,712
Average deposits			4,443,738			9,716,141			2,786,422			16,946,301
Average allocated capital (T1CE) **		$	906,736		$	519,151		$	133,778		$	1,559,665
* The consolidated credit provision is equal to the actual reported provision for loan losses.
** ROT1CE reflects return on average allocated Tier 1 common equity ("T1CE"). The ROT1CE for the Risk Management and Shared Services segment and the Consolidated Total is inclusive of the annualized effect of the preferred stock dividends and discount accretion.