FAIR VALUE MEASUREMENTS (Details 5) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Fair Value Adjustment Components
Assumed Gain (Loss) on Sale	$ 44,214	$ 17,286
Total Fair Value Adjustment	44,214	17,286
Balance Sheet Location
Derivative Contract Assets	21,258	10,638
Derivative Contract Liabilities	(867)	(5,223)
Fair Value Adjustment To Loans Held for Sale	23,699	11,871
Loans held for sale
Fair Value Adjustment Components
Notional or Principal Amount	1,077,862	256,296
Assumed Gain (Loss) on Sale	32,261	9,505
Interest Rate Movement Effect	(8,562)	2,366
Total Fair Value Adjustment	23,699	11,871
Balance Sheet Location
Fair Value Adjustment To Loans Held for Sale	23,699	11,871
Rate lock commitments
Fair Value Adjustment Components
Notional or Principal Amount	302,373	226,455
Assumed Gain (Loss) on Sale	11,953	7,781
Interest Rate Movement Effect	(1,194)	2,785
Total Fair Value Adjustment	10,759	10,566
Balance Sheet Location
Derivative Contract Assets	10,759	10,566
Forward sale contracts
Fair Value Adjustment Components
Notional or Principal Amount	1,380,235	482,751
Interest Rate Movement Effect	9,756	(5,151)
Total Fair Value Adjustment	9,756	(5,151)
Balance Sheet Location
Derivative Contract Assets	10,499	72
Derivative Contract Liabilities	$ (867)	$ (5,223)