COMMITMENTS AND CONTINGENT LIABILITIES (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Leases [Abstract]
Rent expense	$ 7,400,000	$ 7,200,000	$ 7,100,000
Future minimum lease payments [Abstract]
2014	4,990,000
2015	3,715,000
2016	3,042,000
2017	2,566,000
2018	1,140,000
Thereafter	4,254,000
Total future minimum lease payments	19,707,000
Mortgage loans serviced for others [Abstract]
Loans serviced for investors	5,577,325,000	5,058,912,000	4,293,552,000
Primary Recourse Servicing Loans [Member]
Mortgage loans serviced for others [Abstract]
Off-balance sheet, face amount of asset	1,300,000
Letters of Credit [Member]
Lending commitments [Abstract]
Off-balance sheet, face amount of liability	105,400,000
Interim Mortgage Financing, Construction Credit, Credit Card and Revolving Line of Credit Arrangements [Member]
Lending commitments [Abstract]
Off-balance sheet, face amount of liability	$ 2,000,000,000