Financial Instruments with Off-Balance Sheet Risk (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014
Entity Information [Line Items]
Credit Extension Commitments	$ 1,346,196
Credit Extension Commitments, Beyond One Year	334,981
Standby Letters of Credit
Entity Information [Line Items]
Credit Extension Commitments	65,133
Unused Credit Card Lines
Entity Information [Line Items]
Credit Extension Commitments	$ 447,827