Securities Sold Under Repurchase Agreements (Details) $ in Thousands	Jun. 30, 2015 USD ($)
Securities sold under repurchase agreements by collateral pledged
Total securities sold under repurchase agreement	$ 156,725
U.S. Government Agency Obligations Issued by U.S. Government Sponsored Agencies [Member]
Securities sold under repurchase agreements by collateral pledged
Total securities sold under repurchase agreement	26,280
Obligations of States and Political Subdivisions [Member]
Securities sold under repurchase agreements by collateral pledged
Total securities sold under repurchase agreement	1,332
Other Residential-Mortgage Backed Securities Issued or Guaranteed by FNMA, FHLMC or GNMA [Member]
Securities sold under repurchase agreements by collateral pledged
Total securities sold under repurchase agreement	127,242
Commercial Mortgage-Backed Securities Issued or Guaranteed by FNMA, FHLMC or GNMA [Member]
Securities sold under repurchase agreements by collateral pledged
Total securities sold under repurchase agreement	$ 1,871