Investments in Qualified Affordable Housing Projects (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Equity Method Investments and Joint Ventures [Abstract]
Carrying value of qualified affordable housing project investments	$ 7,017		$ 7,017		$ 7,666
Tax credit amortization	324	$ 324	648	$ 648
Tax credits and other benefits	(471)	(313)	(942)	(784)
Total	$ (147)	$ 11	$ (294)	$ (136)