Other Borrowings - Lines of Credit - (Details 4) - USD ($) $ in Thousands	Oct. 28, 2013	Dec. 31, 2015	Dec. 31, 2014
Principal maturities of other borrowings
2016		$ 6
2017		7
2018		7
2019		7
2020		7
Thereafter		55,124
Other borrowings		55,158	$ 101,210
Unsecured line of credit
Other Borrowings
Maximum borrowing capacity	$ 20,000
Variable interest rate basis	one-month LIBOR
Spread on variable rate basis (as a percent)	1.75%
Junior Subordinated Debt
Principal maturities of other borrowings
Thereafter		54,216
Other borrowings		54,216
Other
Principal maturities of other borrowings
2016		6
2017		7
2018		7
2019		7
2020		7
Thereafter		908
Other borrowings		$ 942	$ 948