Low Income Housing Tax Credits (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($) housing_equity_fund	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) housing_equity_fund	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($) housing_equity_fund
Schedule of Equity Method Investments [Line Items]
Number of housing equity funds | housing_equity_fund	4		4		4
Tax credits and other tax benefits	$ 110	$ 36	$ 345	$ 178
Tax credits projected to be received in 2016			504
Other Assets [Member]
Schedule of Equity Method Investments [Line Items]
Investments in housing equity funds	8,500		8,500		$ 9,030
Other Liabilities [Member]
Schedule of Equity Method Investments [Line Items]
Additional capital calls expected	$ 8,710		$ 8,710		$ 9,310