Fair Value - Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis (Details) - Fair Value on Nonrecurring Basis - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	$ 0	$ 0
Other repossessed assets	0	0
Impaired loans	0	0
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	0	0
Other repossessed assets	178	375
Impaired loans	0	0
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	35,978	34,645
Other repossessed assets	0	0
Impaired loans	$ 256	$ 254