Guarantees and Indemnifications Guarantees (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Guarantees [Abstract]
Total of Loans Covered by Guarantees	$ 20,100	$ 12,200
Total of Guaranteed Loans Inquired About	300	1,300
Total Loans Indemnified to third parties	1,600	2,200
Loan Repurchase Guarantee Liability	$ 700	$ 1,200