Loans Receivable and Allowance for Loan Losses (Narrative) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($)
Receivables [Abstract]
Length of period one over which the historical loss experience is analyzed	12 months
Length of period two over which the historical loss experience is analyzed	15 months
Length of period three over which the historical loss experience is analyzed	18 months
Length of period four over which the historical loss experience is analyzed	24 months
Minimum length of period over which the historical loss experience is analyzed for a particular loan type that may not have sufficient loss history	2 years
Extended prior period over which loss experience factors are evaluated to consider trends for the majority of loan portfolio	3 years
Loans, in foreclosure	$ 61.0