Commitments and Contingencies (Narratives) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Loss Contingencies [Line Items]
Allowance for unfunded lending commitments	$ 4,100	$ 5,800
Short-term guarantees	131,700
Repurchase Reserve	2,725	8,374	$ 9,851
Reserve on residential mortgage loans
Loss Contingencies [Line Items]
Financing Receivable, Loans Sold to Third Party Investors	10,100	38,100
Repurchase Reserve	2,725	7,250	8,737
Reserve on manufactured housing loans
Loss Contingencies [Line Items]
Financing Receivable, Loans Sold to Third Party Investors		3,700
Repurchase Reserve	$ 0	$ 1,124	$ 1,114