Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on Nonrecurring Basis (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Property write-downs	$ 3,400	$ 1,900
Nonrecurring
Assets
OREO, net	1,904		$ 1,483
Total	1,904		1,483
Nonrecurring | Level 1
Assets
OREO, net	0		0
Total	0		0
Nonrecurring | Level 2
Assets
OREO, net	1,904		1,483
Total	1,904		1,483
Nonrecurring | Level 3
Assets
OREO, net	0		0
Total	$ 0		$ 0