Qualified Affordable Housing Projects (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Investments in Affordable Housing Projects [Abstract]
Investment in qualified affordable housing projects	$ 14,200,000		$ 15,000,000
Open commitments	0		$ 0
Amortization expense included in noninterest expense	800,000	$ 900,000
Tax credits	$ 900,000	$ 1,000,000