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Goodwill and Intangible Assets (Details 2) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
FHLMC [Member]    
Mortgage Loans on Real Estate [Line Items]    
Mortgage Loans on Real Estate, Face Amount of Mortgages $ 444,714 $ 361,353
FHLB [Member]    
Mortgage Loans on Real Estate [Line Items]    
Mortgage Loans on Real Estate, Face Amount of Mortgages $ 14,039 $ 18,572