CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
INTEREST AND DIVIDEND INCOME
Loans receivable, including fees	$ 261,571	$ 217,159
Investment securities	12,276	10,210
Securities purchased under resale agreements	4,853	5,529
Investment in Federal Home Loan Bank stock	1,123	529
Investment in Federal Reserve Bank stock	748	720
Due from banks and short-term investments	5,602	4,276
Total interest and dividend income	286,173	238,423
INTEREST EXPENSE
Customer deposit accounts	15,882	16,854
Federal Home Loan Bank advances	1,045	1,039
Securities sold under repurchase agreements	10,078	10,529
Long-term debt	1,202	710
Total interest expense	28,207	29,132
Net interest income before provision for loan losses	257,966	209,291
Provision for (reversal of) loan losses, excluding covered loans	7,954	(762)
(Reversal of) provision for loan losses on covered loans	(1,021)	5,089
Net interest income after provision for loan losses	251,033	204,964
NONINTEREST LOSS
Decrease in FDIC indemnification asset and receivable	(53,634)	(31,899)
Branch fees	9,446	7,654
Net gain on sales of investment securities	3,418	5,577
Letters of credit fees and commissions	6,167	5,062
Foreign exchange income	689	2,336
Ancillary loan fees	2,472	2,052
Income from life insurance policies	1,151	968
Net gain on sales of loans	6,196	94
Other operating income	9,179	6,057
Total noninterest loss	(14,916)	(2,099)
NONINTEREST EXPENSE
Compensation and employee benefits	59,277	45,731
Occupancy and equipment expense	15,851	13,808
Amortization of investments in affordable housing partnerships and other investments	5,964	4,283
Amortization of premiums on deposits acquired	2,500	2,409
Deposit insurance premiums and regulatory assessments	5,702	3,782
Loan related expenses	2,575	3,584
Other real estate owned expense (gain on sale)	1,334	(984)
Legal expense	3,799	4,444
Data processing	8,200	2,437
Deposit related expenses	1,704	1,574
Consulting expense	1,049	454
Other operating expenses	16,472	14,833
Total noninterest expense	124,427	96,355
INCOME BEFORE PROVISION FOR INCOME TAXES	111,690	106,510
PROVISION FOR INCOME TAXES	34,949	34,419
NET INCOME	76,741	72,091
PREFERRED STOCK DIVIDENDS		1,714
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$ 76,741	$ 70,377
EARNINGS PER SHARE AVAILABLE TO COMMON STOCKHOLDERS
BASIC (in dollars per share)	$ 0.54	$ 0.51
DILUTED (in dollars per share)	$ 0.54	$ 0.50
WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING
BASIC (in shares)	141,962	137,648
DILUTED (in shares)	142,632	143,519
DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	$ 0.18	$ 0.15