Segment Information (Summary Of Financial Information By Reportable Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			6 Months Ended				12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013		Dec. 31, 2013
Segment Reporting Information [Line Items]
Interest income	$ 224,967	$ 104,015		$ 340,847		$ 208,348
Interest expense	12,708	10,122		20,750		20,266
Net interest income	212,259	93,893		320,097		188,082
Provision for non-covered loan and lease losses	15,399	2,993		20,799		9,981
Provision for covered loan and lease losses	(703)	(3,072)		(132)		(2,840)
Non-interest income	44,529	34,497		67,536		68,512
Non-interest expense	214,131	87,931		310,649		173,693
Income before income taxes	27,961	40,538		56,317		75,760
Provision for income taxes	10,740	14,285		20,332		26,146
Net income	17,221	26,253		35,985		49,614		98,361
Dividends and undistributed earnings allocated to participating securities	83	197	[1]	196	[1]	380	[1]
Net earnings available to common shareholders	17,138	26,056		35,789		49,234
Total assets	22,042,229			22,042,229				11,636,112
Total loans and leases (covered and non-covered)	15,153,257			15,153,257				7,718,395
Total deposits	16,323,000			16,323,000				9,117,660
Community Banking [Member]
Segment Reporting Information [Line Items]
Interest income	207,497	98,571		317,654		197,306
Interest expense	11,365	9,463		18,855		18,934
Net interest income	196,132	89,108		298,799		178,372
Provision for non-covered loan and lease losses	15,399	2,993		20,799		9,981
Provision for covered loan and lease losses	(703)	(3,072)		(132)		(2,840)
Non-interest income	19,978	10,085		32,465		20,371
Non-interest expense	195,296	77,092		284,630		152,552
Income before income taxes	6,118	22,180		25,967		39,050
Provision for income taxes	2,003	6,942		8,192		11,462
Net income	4,115	15,238		17,775		27,588
Dividends and undistributed earnings allocated to participating securities	83	197		196		380
Net earnings available to common shareholders	4,032	15,041		17,579		27,208
Total assets	19,652,350			19,652,350				10,949,050
Total loans and leases (covered and non-covered)	13,200,865			13,200,865				7,186,366
Total deposits	16,277,293			16,277,293				9,090,959
Home Lending [Member]
Segment Reporting Information [Line Items]
Interest income	17,470	5,444		23,193		11,042
Interest expense	1,343	659		1,895		1,332
Net interest income	16,127	4,785		21,298		9,710
Provision for non-covered loan and lease losses	0	0		0		0
Provision for covered loan and lease losses	0	0		0		0
Non-interest income	24,551	24,412		35,071		48,141
Non-interest expense	18,835	10,839		26,019		21,141
Income before income taxes	21,843	18,358		30,350		36,710
Provision for income taxes	8,737	7,343		12,140		14,684
Net income	13,106	11,015		18,210		22,026
Dividends and undistributed earnings allocated to participating securities	0	0		0		0
Net earnings available to common shareholders	13,106	11,015		18,210		22,026
Total assets	2,389,879			2,389,879				687,062
Total loans and leases (covered and non-covered)	1,952,392			1,952,392				532,029
Total deposits	$ 45,707			$ 45,707				$ 26,701

[1] Represents dividends paid and undistributed earnings allocated to nonvested restricted stock awards.