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Borrowings - Maturities of FHLB Borrowings (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Contractual Maturities
 
Extinguishment of Debt [Line Items]  
Due within one year $ 66,000
Due after one year through five years 401,071
Total 467,071
Maturity/Put Date
 
Extinguishment of Debt [Line Items]  
Due within one year 87,071
Due after one year through five years 380,000
Total $ 467,071