Consolidated Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2011

Consolidated Quarterly Financial Data (Unaudited) [Abstract]

Summary Of Consolidated Quarterly Financial Data

	Quarters Ended 2011
	March 31			June 30			Sept 30		Dec 31
	(in thousands, except for share data)
Interest income	$	167,819		$	167,794		$	171,639	$	166,572
Interest expense		50,927			50,124			49,704		48,258
Net interest income		116,892			117,670			121,935		118,314
Provision for credit losses		24,162			6,026			7,783		15,364
Non-interest income:
Gains on securities transactions, net		2,679			16,492			863		12,034
Net impairment losses on securities recognized
in earnings		(825	)		—			—		(19,143	)
Trading gains (losses), net		3,382			(1,048	)		776		(839	)
Other non-interest income		39,551			18,091			18,564		21,720
Non-interest expense		83,829			83,080			85,302		84,377
Income before income taxes		53,688			62,099			49,053		32,345
Income tax expense		17,103			25,205			13,696		7,528
Net income		36,585			36,894			35,357		24,817
Earnings per common share:
Basic	$	0.22		$	0.22		$	0.21	$	0.15
Diluted		0.22			0.22			0.21		0.15
Cash dividends declared per common share		0.17			0.17			0.17		0.17
Average common shares outstanding:
Basic		169,671,128			169,843,354			170,007,399		170,185,439
Diluted		169,678,846			169,852,912			170,007,983		170,185,880

	Quarters Ended 2010
	March 31			June 30			Sept 30			Dec 31
	(in thousands, except for share data)
Interest income	$	169,949		$	171,187		$	170,586		$	165,090
Interest expense		55,098			54,161			52,852			51,949
Net interest income		114,851			117,026			117,734			113,141
Provision for credit losses		12,611			12,438			9,308			15,099
Non-interest income:
Gains on securities transactions, net		863			3,656			112			6,967
Net impairment losses on securities recognized in earnings		(2,593	)		(2,049	)		—			—
Trading (losses) gains, net		(3,030	)		838			(2,627	)		(2,078	)
Other non-interest income		20,437			20,031			19,843			30,957
Non-interest expense		78,354			79,973			78,947			80,408
Income before income taxes		39,563			47,091			46,807			53,480
Income tax expense		12,200			14,081			14,168			15,322
Net income		27,363			33,010			32,639			38,158
Earnings per common share:
Basic	$	0.16		$	0.20		$	0.19		$	0.23
Diluted		0.16			0.20			0.19			0.23
Cash dividends declared per common share		0.17			0.17			0.17			0.17
Average common shares outstanding:
Basic		168,831,733			169,009,302			169,177,275			169,426,058
Diluted		168,834,400			169,013,634			169,178,469			169,428,992