Off-Balance Sheet Arrangements (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Guarantees the performance of a customer to a third party [Member]
Other Commitments [Line Items]
Expiration period	1 year
Maximum potential amount of undiscounted future payments related to standby letters of credit	$ 0.7	$ 2.7
Agreement to extend credit and undisbursed advances on customer lines of credit [Member]
Other Commitments [Line Items]
Commitments	$ 380.9