Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2013

Segment Reporting [Abstract]

Selected segment information

Segment Income Statement Data
	($ in Thousands)		Commercial Banking		Consumer Banking			Risk Management and Shared Services			Consolidated Total
2013
Net interest income		$	318,377		$	317,016		$	10,150		$	645,543
Noninterest income			94,450			201,634			17,015			313,099
	Total revenue		412,827			518,650			27,165			958,642
Credit provision *			55,198			20,122			(65,320)			10,000
Noninterest expense			187,277			428,591			64,881			680,749
Income before income taxes			170,352			69,937			27,604			267,893
Income tax expense (benefit)			59,623			24,478			(4,900)			79,201
Net income		$	110,729		$	45,459		$	32,504		$	188,692
Return on average allocated capital (ROT1CE) **			14.2	%		8.5	%		4.8	%		9.8	%
2012
Net interest income		$	290,594		$	301,807		$	33,591		$	625,992
Noninterest income			86,912			207,234			19,144			313,290
	Total revenue		377,506			509,041			52,735			939,282
Credit provision *			46,563			19,419			(62,982)			3,000
Noninterest expense			194,327			440,611			46,885			681,823
Income before income taxes			136,616			49,011			68,832			254,459
Income tax expense			47,816			17,154			10,516			75,486
Net income		$	88,800		$	31,857		$	58,316		$	178,973
Return on average allocated capital (ROT1CE) **			12.1	%		5.7	%		9.8	%		9.5	%
2011
Net interest income		$	264,728		$	317,020		$	31,083		$	612,831
Noninterest income			86,087			176,236			10,796			273,119
	Total revenue		350,815			493,256			41,879			885,950
Credit provision *			40,259			17,988			(6,247)			52,000
Noninterest expense			191,038			441,468			18,017			650,523
Income before income taxes			119,518			33,800			30,109			183,427
Income tax expense (benefit)			41,831			11,830			(9,933)			43,728
Net income		$	77,687		$	21,970		$	40,042		$	139,699
Return on average allocated capital (ROT1CE) **			11.0	%		4.2	%		3.1	%		6.7	%
Segment Balance Sheet Data
	($ in Thousands)		Commercial Banking		Consumer Banking			Risk Management and Shared Services			Consolidated Total
2013
Average earning assets		$	8,443,203		$	7,225,943		$	5,310,982		$	20,980,128
Average loans			8,433,389			7,225,943			3,813			15,663,145
Average deposits			5,479,567			9,675,302			2,283,326			17,438,195
Average allocated capital (T1CE) **		$	778,098		$	535,783		$	564,490		$	1,878,371
2012
Average earning assets		$	7,540,502		$	7,182,766		$	4,890,509		$	19,613,777
Average loans			7,534,026			7,182,766			24,993			14,741,785
Average deposits			4,613,215			9,441,330			1,527,824			15,582,369
Average allocated capital (T1CE) **		$	731,943		$	562,125		$	544,356		$	1,838,424
2011
Average earning assets		$	6,498,071		$	6,653,451		$	6,290,741		$	19,442,263
Average loans			6,494,133			6,653,451			131,264			13,278,848
Average deposits			3,685,191			9,446,488			1,269,448			14,401,127
Average allocated capital (T1CE) **		$	705,775		$	523,168		$	484,212		$	1,713,155
* 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.