Consolidated Statement of Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Interest income
Loans and leases, including fees	$ 674,549	$ 624,247	$ 1,323,063	$ 1,218,279
Deposits at banks	767	479	980	515
Federal funds sold	8	10	11	28
Agreements to resell securities		127		128
Trading account	318	282	635	670
Investment securities
Fully taxable	59,724	60,827	122,688	131,489
Exempt from federal taxes	2,020	2,281	4,104	4,627
Total interest income	737,386	688,253	1,451,481	1,355,736
Interest expense
NOW accounts	424	274	707	476
Savings deposits	16,940	20,757	35,123	39,996
Time deposits	12,354	19,310	25,863	38,381
Deposits at Cayman Islands office	232	193	445	587
Short-term borrowings	348	147	651	639
Long-term borrowings	59,105	61,370	120,320	120,651
Total interest expense	89,403	102,051	183,109	200,730
Net interest income	647,983	586,202	1,268,372	1,155,006
Provision for credit losses	60,000	63,000	109,000	138,000
Net interest income after provision for credit losses	587,983	523,202	1,159,372	1,017,006
Other income
Mortgage banking revenues	69,514	42,151	125,706	87,307
Service charges on deposit accounts	110,982	119,716	219,871	229,447
Trust income	122,275	75,592	239,228	104,913
Brokerage services income	16,172	14,926	30,073	29,222
Trading account and foreign exchange gains	6,238	6,798	16,809	15,077
Gain (loss) on bank investment securities	(408)	110,744	(363)	150,097
Total other-than-temporary impairment ("OTTI") losses	(4,072)	(33,211)	(24,112)	(42,725)
Portion of OTTI losses recognized in other comprehensive income (before taxes)	(12,101)	6,681	(3,547)	154
Net OTTI losses recognized in earnings	(16,173)	(26,530)	(27,659)	(42,571)
Equity in earnings of Bayview Lending Group LLC	(6,635)	(5,223)	(11,387)	(11,901)
Other revenues from operations	89,685	163,482	176,095	254,485
Total other income	391,650	501,656	768,373	816,076
Other expense
Salaries and employee benefits	323,686	300,178	669,784	566,268
Equipment and net occupancy	65,376	59,670	130,419	116,333
Printing, postage and supplies	11,368	9,723	23,240	18,925
Amortization of core deposit and other intangible assets	15,907	14,740	32,681	27,054
FDIC assessments	24,962	26,609	53,911	45,703
Other costs of operations	186,093	165,975	357,052	302,183
Total other expense	627,392	576,895	1,267,087	1,076,466
Income before taxes	352,241	447,963	660,658	756,616
Income taxes	118,861	125,605	220,815	227,985
Net income	233,380	322,358	439,843	528,631
Net income available to common shareholders
Basic	214,709	297,164	402,947	487,283
Diluted	$ 214,716	$ 297,179	$ 402,958	$ 487,308
Net income per common share
Basic	$ 1.71	$ 2.43	$ 3.21	$ 4.04
Diluted	$ 1.71	$ 2.42	$ 3.20	$ 4.02
Cash dividends per common share	$ 0.70	$ 0.70	$ 1.40	$ 1.40
Average common shares outstanding
Basic	125,488	122,181	125,354	120,699
Diluted	125,897	122,796	125,756	121,332