CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
INTEREST AND DIVIDEND INCOME
Loans receivable, including fees	$ 262,258	$ 259,105	$ 793,313	$ 710,554
Investment securities	11,364	11,039	36,130	30,843
Securities purchased under resale agreements	5,344	5,168	14,756	16,132
Investment in Federal Home Loan Bank stock	663	1,395	2,559	2,945
Investment in Federal Reserve Bank stock	814	723	2,344	2,164
Due from banks and short-term investments	5,505	4,276	17,461	12,844
Total interest and dividend income	285,948	281,706	866,563	775,482
INTEREST EXPENSE
Customer deposit accounts	17,158	15,099	48,609	47,691
Federal Home Loan Bank advances	1,027	1,049	3,087	3,135
Securities sold under repurchase agreements	9,578	10,323	29,845	31,069
Long-term debt	1,211	985	3,632	2,402
Total interest expense	28,974	27,456	85,173	84,297
Net interest income before provision for loan losses	256,974	254,250	781,390	691,185
Provision for loan losses on non-covered loans	7,556	4,535	24,454	12,050
Provision for (reversal of) loan losses on covered loans	7,669	(964)	5,704	4,848
Net interest income after provision for loan losses	241,749	250,679	751,232	674,287
NONINTEREST INCOME (LOSS)
Changes in FDIC indemnification asset and receivable/payable	(39,647)	(74,456)	(150,839)	(154,260)
Branch fees	9,515	8,123	28,480	23,896
Net gains on sales of investment securities	2,514	1,084	6,603	12,006
Letters of credit fees and commissions	6,844	5,615	19,110	16,103
Foreign exchange income	3,454	2,940	6,984	8,925
Ancillary loan fees	2,874	2,125	7,867	6,811
Income from life insurance policies	836	952	2,868	2,820
Net gains on sales of loans	7,726	3,945	20,715	3,685
Dividend and other investment income	4,113	99	5,339	327
Other commission and fee income	8,290	5,936	22,148	14,507
Other operating income	3,823	2,216	11,206	9,306
Total noninterest income (loss)	10,342	(41,421)	(19,519)	(55,874)
NONINTEREST EXPENSE
Compensation and employee benefits	58,111	41,482	172,469	129,239
Occupancy and equipment expense	15,842	14,697	48,227	42,211
Amortization of investments in affordable housing partnerships and other tax credit investments	36,936	4,693	55,751	14,040
Amortization of premiums on deposits acquired	2,597	2,347	7,721	7,131
Deposit insurance premiums and regulatory assessments	5,247	4,191	16,761	11,848
Loan related expenses	1,127	2,752	2,604	9,909
Other real estate owned (income) expense	(1,422)	157	695	(2,015)
Legal expense	32,500	9,001	45,403	18,912
Data processing	2,211	2,159	13,351	6,796
Consulting expense	2,982	1,264	6,359	2,721
Other operating expenses	20,848	17,609	59,964	50,335
Total noninterest expense	176,979	100,352	429,305	291,127
INCOME BEFORE INCOME TAXES	75,112	108,906	302,408	327,286
INCOME TAX (BENEFIT) EXPENSE	(13,644)	35,749	52,923	108,023
NET INCOME	88,756	73,157	249,485	219,263
PREFERRED STOCK DIVIDENDS				3,428
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$ 88,756	$ 73,157	$ 249,485	$ 215,835
EARNINGS PER SHARE AVAILABLE TO COMMON STOCKHOLDERS
BASIC (in dollars per share)	$ 0.62	$ 0.53	$ 1.74	$ 1.56
DILUTED (in dollars per share)	$ 0.62	$ 0.53	$ 1.74	$ 1.56
WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING
BASIC (in shares)	143,210	137,036	142,791	137,404
DILUTED (in shares)	143,810	137,467	143,377	140,199
DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	$ 0.18	$ 0.15	$ 0.54	$ 0.45