Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014
Commitments to Extend Credit
Commitments and Contingencies
Commitments outstanding	$ 321.5
Standby Letters of Credit
Commitments and Contingencies
Commitments outstanding	6.7
Commitments to Originate Mortgage Loans Held-for-Sale at Fixed Prices
Commitments and Contingencies
Commitments outstanding	26.0
Forward Sales Commitments
Commitments and Contingencies
Commitments outstanding	$ 32.8