Commitments and Contingencies (Narratives) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013
Asset sales [Line Items]
Financing Receivable, Repurchase Reserve	$ 7,778	$ 7,776	$ 8,374	$ 9,022	$ 9,317	$ 9,851
Allowance for Loan and Leases Losses, Reserve Associated with Loans Sold with Recourse	7,800		8,400	9,000
Allowance for Loan and Lease Losses, Unfunded Lending Commitments	3,900		5,800	7,100
Residential Mortgages
Asset sales [Line Items]
Financing Receivable, Loans Sold to Third Party Investors	22,200		38,100	24,100
Financing Receivable, Repurchase Reserve	6,650	6,650	7,250	7,900	8,200	8,737
Manufactured Housing
Asset sales [Line Items]
Financing Receivable, Loans Sold to Third Party Investors	3,700
Financing Receivable, Repurchase Reserve	1,128	$ 1,126	$ 1,124	$ 1,122	$ 1,117	$ 1,114
Allowance for Loan and Leases Losses, Reserve Associated with Loans Sold with Recourse	$ 1,100