Fair Value Measurements - Gains and losses from changes in fair value included in earnings for loans held for sale (Details 5) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Fair Value Disclosures [Abstract]
Change in fair value	$ (18)	$ 85	$ 135	$ 94