Segment Information (Tables)

6 Months Ended

Jun. 30, 2013

Segment Reporting [Abstract]

Schedule of Financial Information Concerning Segments

Summarized financial information concerning segments is shown in the following table for the three and six months ended June 30:

(dollars in thousands)	Community Banking			Treasury			Other			Total
Three months ended June 30, 2013
Net interest income	$	67,192		$	(3,006	)	$	15,005		$	79,191
Provision for loan losses		(2,446	)		—			(1,247	)		(3,693	)
Noninterest income		15,867			3,474			26,903			46,244
Noninterest expense		43,937			1,566			41,413			86,916
Income (loss) before income taxes		41,568			(1,098	)		1,742			42,212
Total assets		5,032,076			4,054,985			554,010			9,641,071
Three months ended June 30, 2012
Net interest income	$	66,866		$	(5,508	)	$	14,615		$	75,973
Provision for loan losses		(3,466	)		—			3,859			393
Noninterest income		27,212			7,919			13,411			48,542
Noninterest expense		61,005			2,331			22,691			86,027
Income (loss) before income taxes		36,539			80			1,476			38,095
Total assets		4,593,862			3,608,140			487,554			8,689,556
Six months ended June 30, 2013
Net interest income	$	134,597		$	(6,612	)	$	30,256		$	158,241
Provision for loan losses		(2,801	)		—			(47	)		(2,848	)
Noninterest income		30,321			6,148			56,090			92,559
Noninterest expense		90,851			4,032			82,216			177,099
Income (loss) before income taxes		76,868			(4,496	)		4,177			76,549
Total assets		5,032,076			4,054,985			554,010			9,641,071
Six months ended June 30, 2012
Net interest income	$	136,298		$	(11,898	)	$	25,846		$	150,246
Provision for loan losses		(3,720	)		—			6,169			2,449
Noninterest income		53,948			10,375			33,352			97,675
Noninterest expense		122,824			4,443			50,047			177,314
Income (loss) before income taxes		71,142			(5,966	)		2,982			68,158
Total assets		4,593,862			3,608,140			487,554			8,689,556