Financial Derivatives (Credit Default Swaps) (Details) (Credit Default Swap, Buying Protection [Member], USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Credit Derivatives [Line Items]
Notional Amount	$ 110,000,000	$ 95,000,000
Fair Value	0
Average term of credit risk derivatives	21 years 6 months	24 years 11 months
Underlying Other Beneficiary Single Name [Member]
Credit Derivatives [Line Items]
Notional Amount	50,000,000	35,000,000
Fair Value	(1,000,000)
Average term of credit risk derivatives	6 years 0 months	7 years 4 months
Underlying Other Beneficiary Index Traded [Member]
Credit Derivatives [Line Items]
Notional Amount	60,000,000	60,000,000
Fair Value	$ 1,000,000
Average term of credit risk derivatives	34 years 6 months	35 years 2 months