Mortgage Servicing Rights (Sensitivity Analysis of Current Fair Value to Changes in Discount and Prepayment Speed Assumptions) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Transfers and Servicing [Abstract]
Effect on fair value of a 10% adverse change	$ (4,610)	$ (2,255)
Effect on fair value of a 20% adverse change	(8,863)	(4,323)
Effect on fair value of a 100 basis point adverse change	(4,380)	(1,832)
Effect on fair value of a 200 basis point adverse change	$ (8,440)	$ (3,534)