Consolidated Statements Of Income (USD $) In Thousands, except Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Interest income
Loans and leases	$ 240,493	$ 264,819	$ 705,677	$ 654,434
Investment securities:
U. S. Treasury	1,707	5,774	7,176	20,120
Government agency	5,162	3,632	15,072	8,887
Residential mortgage-backed securities	2,366	1,544	7,123	4,981
Corporate bonds	1,971	2,196	6,266	6,529
State, county and municipal	108	14	133	62
Other	21	77	480	159
Total investment securities interest and dividend income	11,335	13,237	36,250	40,738
Overnight investments	351	572	1,056	1,591
Total interest income	252,179	278,628	742,983	696,763
Interest expense
Deposits	24,825	37,087	81,726	116,294
Short-term borrowings	1,470	742	4,649	2,138
Long-term obligations	8,697	10,859	28,059	32,493
Total interest expense	34,992	48,688	114,434	150,925
Net interest income	217,187	229,940	628,549	545,838
Provision for loan and lease losses	44,628	59,873	143,024	108,629
Net interest income after provision for loan and lease losses	172,559	170,067	485,525	437,209
Noninterest income
Gain on acquisitions	87,788	0	151,262	136,000
Cardholder and merchant services	30,801	27,982	88,124	80,276
Service charges on deposit accounts	16,389	18,063	47,957	56,403
Wealth management services	14,011	12,826	41,418	38,782
Fees from processing services	7,883	7,485	22,724	21,934
Securities gains (losses)	254	940	(291)	1,885
Other service charges and fees	6,256	4,734	18,173	14,492
Mortgage income	3,994	3,013	8,839	6,347
Insurance commissions	2,196	1,980	7,010	6,580
ATM income	1,453	1,730	4,413	5,084
Adjustments for FDIC receivable for loss share agreements	(18,893)	(29,532)	(43,019)	(14,005)
Other	11,612	748	13,363	762
Total noninterest income	163,744	49,969	359,973	354,540
Noninterest expense
Salaries and wages	77,877	74,727	229,805	221,362
Employee benefits	17,153	14,455	55,510	48,605
Occupancy expense	18,538	18,353	55,338	54,706
Equipment expense	17,478	17,251	52,384	49,670
FDIC insurance expense	2,768	5,842	13,494	17,338
Foreclosure-related expenses	14,558	(1,271)	23,793	6,804
Other	55,460	47,494	151,018	133,092
Total noninterest expense	203,832	176,851	581,342	531,577
Income before income taxes	132,471	43,185	264,156	260,172
Income taxes	50,536	15,439	99,161	97,213
Net income	$ 81,935	$ 27,746	$ 164,995	$ 162,959
Average shares outstanding	10,363,964	10,434,453	10,406,833	10,434,453
Net income per share (in dollars per share)	$ 7.91	$ 2.66	$ 15.85	$ 15.62