Unaudited Condensed Consolidated Statements of Financial Condition (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Assets
Cash on hand and in banks	$ 130,285	$ 123,270
Interest bearing cash deposits and federal funds sold	124,399	63,770
Cash and cash equivalents	254,684	187,040
Investment securities, available-for-sale	3,318,953	3,683,005
Loans held for sale	61,505	145,501
Loans receivable	4,001,099	3,397,425
Allowance for loan and lease losses	(130,765)	(130,854)
Loans receivable, net	3,870,334	3,266,571
Premises and equipment, net	168,633	158,989
Other real estate owned	36,531	45,115
Accrued interest receivable	44,261	37,770
Deferred tax asset	47,957	20,394
Core deposit intangible, net	10,228	6,174
Goodwill	129,706	106,100
Non-marketable equity securities	52,192	48,812
Other assets	52,946	41,969
Total assets	8,047,930	7,747,440
Liabilities
Non-interest bearing deposits	1,397,401	1,191,933
Interest bearing deposits	4,215,479	4,172,528
Securities sold under agreements to repurchase	314,313	289,508
Federal Home Loan Bank advances	967,382	997,013
Other borrowed funds	8,466	10,032
Subordinated debentures	125,526	125,418
Accrued interest payable	3,568	4,675
Other liabilities	67,988	55,384
Total liabilities	7,100,123	6,846,491
Stockholders' Equity
Preferred shares, $0.01 par value per share, 1,000,000 shares authorized, none issued or outstanding	0	0
Common stock, $0.01 par value per share, 117,187,500 shares authorized	743	719
Paid-in capital	689,751	641,737
Retained earnings - substantially restricted	247,330	210,531
Accumulated other comprehensive income	9,983	47,962
Total stockholders' equity	947,807	900,949
Total liabilities and stockholders' equity	$ 8,047,930	$ 7,747,440
Number of common stock shares issued and outstanding	74,307,951	71,937,222