Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Cash and cash equivalents:
Interest bearing	$ 223,338	$ 173,962
Noninterest bearing	119,690	125,916
Total cash and cash equivalents	343,028	299,878
Restricted cash	6,651	31,672
Investments and mortgage-backed securities ("MBS"):
Available for sale	1,498,377	1,513,157
Held to maturity	175	206
Loans held for sale ($190,635 and $465,983 at fair value)	245,783	465,983
Loans receivable, net ($26,931 and $23,177 at fair value)	7,024,326	6,101,749
Accrued interest receivable	29,614	28,019
Other real estate owned, net ("OREO")	17,464	25,042
Properties and equipment, net	100,370	93,850
Bank-owned life insurance ("BOLI")	189,906	179,828
Goodwill	36,633	22,577
Other intangible assets, net	16,154	19,072
Mortgage servicing rights, net	57,030	32,420
Deferred tax asset, net	282,561	292,082
Other assets, net	136,264	131,375
Total assets	9,984,336	9,236,910
LIABILITIES:
Noninterest bearing	1,818,194	1,702,740
Interest bearing	5,036,248	4,733,377
Total deposits	6,854,442	6,436,117
Advances from Federal Home Loan Bank ("FHLB")	1,027,807	605,330
Securities sold under repurchase agreements	534,669	586,867
Junior subordinated debentures	245,298	245,294
Accrued interest payable	4,202	4,229
Accrued expenses and other liabilities	102,037	141,150
Total liabilities	8,768,455	8,018,987
SHAREHOLDERS' EQUITY:
Preferred stock, 10,000,000 shares authorized; no shares outstanding	0	0
Common stock, 151,515,151 shares authorized; 62,314,862 and 62,207,529 shares outstanding, respectively	1,972,021	1,968,025
Accumulated other comprehensive income	29,919	60,712
Accumulated deficit	(786,059)	(810,814)
Total shareholders' equity	1,215,881	1,217,923
Total liabilities and shareholders' equity	$ 9,984,336	$ 9,236,910