Servicing Assets and Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Servicing assets:
Balance at beginning of period			$ 11,744	$ 13,773
Addition related to sale of SBA loans			863	1,181
Amortization			(1,270)	(1,829)
Balance at end of period	$ 11,337	$ 13,125	11,337	13,125
Servicing liabilities:
Balance at beginning of period			4,784	5,971
Amortization			(863)	(603)
Balance at end of period	3,921	5,368	3,921	5,368
Serviced loans sold to unaffiliated parties	481,400	486,100	481,400	486,100
Servicing fee income	$ 1,200	$ 1,200	$ 2,300	$ 2,300