Quarterly report pursuant to Section 13 or 15(d)

Held-to-Maturity Securities (Details Textuals)

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Held-to-Maturity Securities (Details Textuals) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Schedule of Held-to-maturity Securities [Line Items]        
Available for sale securities transferred to held to maturity securities $ 0 $ 0 $ 0 $ 0
Purchases of held-to-maturity securities     0 397,309,000
Held-to-Maturity Securities (Textuals)        
Unrealized net losses recognized in OCI at time of transfer of available for sale securities transferred to Held To Maturity Securities $ 0 $ 0 $ 0 $ 0