Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Cash and cash equivalents:
Interest bearing	$ 246,661	$ 382,330
Noninterest bearing	84,655	88,269
Total cash and cash equivalents	331,316	470,599
Restricted cash	37,632	20,629
Investments and mortgage-backed securities ("MBS"):
Available for sale	2,459,880	2,547,876
Held to maturity	1,736	1,747
Loans held for sale (at fair value: $234,933 and $223,638)	234,933	273,957
Loans receivable, net	5,853,558	5,341,179
Accrued interest receivable	34,271	32,826
Other real estate owned, net ("OREO")	70,383	81,910
Properties and equipment, net	86,362	84,015
Bank-owned life insurance ("BOLI")	176,345	174,512
Goodwill	21,730	0
Other intangible assets, net	24,447	12,078
Mortgage servicing rights, net	25,975	23,102
Other assets, net	143,713	128,807
Total assets	9,502,281	9,193,237
LIABILITIES:
Noninterest bearing	1,513,616	1,211,628
Interest bearing	5,436,252	5,274,190
Total deposits	6,949,868	6,485,818
Advances from Federal Home Loan Bank ("FHLB")	205,540	405,609
Securities sold under repurchase agreements and funds purchased	1,065,795	1,055,763
Junior subordinated debentures	245,291	245,290
Accrued interest payable	24,262	22,575
Accrued expenses and other liabilities	113,912	99,625
Total liabilities	8,604,668	8,314,680
SHAREHOLDERS' EQUITY:
Preferred stock, 10,000,000 shares authorized; no shares outstanding	0	0
Common stock, 151,515,151 shares authorized; 62,094,447 and 62,057,645 shares outstanding	1,965,542	1,964,234
Accumulated other comprehensive income	65,571	61,115
Accumulated deficit	(1,133,500)	(1,146,792)
Total shareholders' equity	897,613	878,557
Total liabilities and shareholders' equity	$ 9,502,281	$ 9,193,237