CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
INTEREST AND DIVIDEND INCOME
Loans receivable, including fees	$ 269,484	$ 234,290	$ 531,055	$ 451,449
Investment securities	12,490	9,594	24,766	19,804
Securities purchased under resale agreements	4,559	5,435	9,412	10,964
Investment in Federal Home Loan Bank stock	773	1,021	1,896	1,550
Investment in Federal Reserve Bank stock	782	721	1,530	1,441
Due from banks and short-term investments	6,354	4,292	11,956	8,568
Total interest and dividend income	294,442	255,353	580,615	493,776
INTEREST EXPENSE
Customer deposit accounts	15,569	15,738	31,451	32,592
Federal Home Loan Bank advances	1,015	1,047	2,060	2,086
Securities sold under repurchase agreements	10,189	10,217	20,267	20,746
Long-term debt	1,219	707	2,421	1,417
Total interest expense	27,992	27,709	56,199	56,841
Net interest income before provision for loan losses	266,450	227,644	524,416	436,935
Provision for loan losses, excluding covered loans	8,944	8,277	16,898	7,515
(Reversal of) provision for loan losses on covered loans	(944)	723	(1,965)	5,812
Net interest income after provision for loan losses	258,450	218,644	509,483	423,608
NONINTEREST INCOME (LOSS)
Changes in FDIC indemnification asset and receivable/payable	(57,558)	(47,905)	(111,192)	(79,804)
Branch fees	9,519	8,119	18,965	15,773
Net gains on sales of investment securities	671	5,345	4,089	10,922
Net gains on sales of fixed assets	180	228	360	352
Letters of credit fees and commissions	6,099	5,426	12,266	10,488
Foreign exchange income	2,841	3,649	3,530	5,985
Ancillary loan fees	2,521	2,634	4,993	4,686
Income from life insurance policies	881	900	2,032	1,868
Net gains (losses) on sales of loans	6,793	(354)	12,989	(260)
Other operating income	13,108	9,604	22,107	15,537
Total noninterest loss	(14,945)	(12,354)	(29,861)	(14,453)
NONINTEREST EXPENSE
Compensation and employee benefits	55,081	42,026	114,358	87,757
Occupancy and equipment expense	16,534	13,706	32,385	27,514
Amortization of investments in affordable housing partnerships and other investments	12,851	5,064	18,815	9,347
Amortization of premiums on deposits acquired	2,624	2,375	5,124	4,784
Deposit insurance premiums and regulatory assessments	5,812	3,875	11,514	7,657
Loan related (income) expenses	(1,098)	3,573	1,477	7,157
Other real estate owned expense (gains on sale)	783	(1,188)	2,117	(2,172)
Legal expense	9,104	5,467	12,903	9,911
Data processing	2,940	2,200	11,140	4,637
Deposit related expenses	1,956	1,516	3,660	3,090
Consulting expense	2,328	1,003	3,377	1,457
Other operating expenses	18,984	14,803	35,456	29,636
Total noninterest expense	127,899	94,420	252,326	190,775
INCOME BEFORE PROVISION FOR INCOME TAXES	115,606	111,870	227,296	218,380
PROVISION FOR INCOME TAXES	31,618	37,855	66,567	72,274
NET INCOME	83,988	74,015	160,729	146,106
PREFERRED STOCK DIVIDENDS		1,714		3,428
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$ 83,988	$ 72,301	$ 160,729	$ 142,678
EARNINGS PER SHARE AVAILABLE TO COMMON STOCKHOLDERS
BASIC (in dollars per share)	$ 0.59	$ 0.52	$ 1.13	$ 1.03
DILUTED (in dollars per share)	$ 0.58	$ 0.52	$ 1.12	$ 1.03
WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING
BASIC (in shares)	143,187	137,536	142,578	137,592
DILUTED (in shares)	143,689	137,816	143,158	141,573
DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	$ 0.18	$ 0.15	$ 0.36	$ 0.30