Long-term Debt and Short Term Borrowings (Narrative) (Details) (USD $)	0 Months Ended
	Feb. 13, 2012 7.875% Senior Notes due February 15, 2019 [Member]	Feb. 15, 2013 4.875% Subordinated Notes due February 15, 2013 [Member]	Feb. 21, 2012 4.875% Subordinated Notes due February 15, 2013 [Member]	Feb. 13, 2012 4.875% Subordinated Notes due February 15, 2013 [Member]	Dec. 31, 2013 Loans Receivable [Member]	Dec. 31, 2012 Loans Receivable [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$ 300,000,000
Proceeds from debt, net of issuance costs	292,600,000
Subordinated notes	206,800,000
Extinguishment of debt, amount		60,600,000	146,100,000
Outstanding principal amount, percentage				71.00%
Early repayment of subordinated debt			146,100,000
Recorded balance loans receivable					$ 3,400,000,000	$ 3,800,000,000