Servicing Rights (Fair Value of Servicing Assets) (Details) - Term Loan - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Servicing Asset at Fair Value, Amount [Roll Forward]
Fair value at the beginning of period	$ 3,489	$ 0
Addition:
Servicing resulting from transfers of financial assets	2,690	3,708
Changes in fair value:
Change in inputs or assumptions used in the valuation model	0	1,051
Changes in servicing rights, at fair value	(5,048)	(1,270)
Fair value at the end of period (Level 3)	$ 1,131	$ 3,489