Condensed Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Interest Income
Interest and fees on loans and leases	$ 135,816	$ 118,527	$ 260,594	$ 241,520
Interest and dividends on investment securities	20,699	29,333	41,248	55,577
Other interest income	82	273	186	1,115
Total interest income	156,597	148,133	302,028	298,212
Interest Expense
Deposits	20,419	25,410	41,393	51,600
Other borrowings	11,194	9,813	20,028	20,009
Total interest expense	31,613	35,223	61,421	71,609
Net Interest Income	124,984	112,910	240,607	226,603
Provision for Loan and Lease Losses	5,757	9,004	17,112	27,034
Net Interest Income after Provision for Loan and Lease Losses	119,227	103,906	223,495	199,569
Noninterest Income
Loan servicing fee income	42,483	46,757	88,039	95,633
Amortization and impairment of mortgage servicing rights	(64,277)	(21,429)	(108,760)	(44,217)
Net loan servicing income (loss)	(21,794)	25,328	(20,721)	51,416
Gain on sale of loans	69,926	5,456	118,103	18,933
Loan production revenue	9,852	5,588	17,289	11,995
Deposit fee income	5,828	6,435	12,067	11,595
Other lease income	8,822	8,336	17,485	15,068
Other	1,489	1,790	3,093	9,778
Total noninterest income	74,123	52,933	147,316	118,785
Noninterest Expense
Salaries, commissions and other employee benefits expense	76,277	56,321	142,867	113,694
Equipment expense	16,889	11,709	32,837	22,469
Occupancy expense	6,017	5,031	11,366	9,571
General and administrative expense	76,600	48,650	147,534	121,216
Total noninterest expense	175,783	121,711	334,604	266,950
Income before Provision for Income Taxes	17,567	35,128	36,207	51,404
Provision for Income Taxes	6,395	13,333	13,189	20,193
Net Income	11,172	21,795	23,018	31,211
Less: Net Income Allocated to Participating Preferred Stock	(1,685)	(4,417)	(7,664)	(6,824)
Net Income Allocated to Common Shareholders	$ 9,487	$ 17,378	$ 15,354	$ 24,387
Basic Earnings Per Share	$ 0.09	$ 0.23	$ 0.17	$ 0.33
Diluted Earnings Per Share	$ 0.09	$ 0.23	$ 0.17	$ 0.32