Credit Facility (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Line of Credit Facility [Line Items]
Line of credit facility, commitment	$ 150,000	$ 150,000
Net assets of Holdings' consolidated subsidiaries, subject to regulatory restrictions	2,294,461
Net assets of consolidated subsidiaries	3,136,782
Line of credit facility, description of variable rate basis	the rate of interest publicly announced by Citibank as its base rate
Total Citibank Holdings Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of credit facility, term of credit facility	3 years	5 years
Line of credit facility, commitment	150,000	150,000
Line of credit facility, required minimum debt-to-capital ratio	0.35
Line of credit facility, required minimum net worth	1,875,000
Percentage amount of consolidated net income required to be reserved to maintain compliance with facility covenants	25.00%
Percentage amount of increase in consolidated net worth from new issuance required to be reserved to maintain compliance with facility covenants	25.00%
Increase in reserves due to new issuance during the period required to maintain compliance with facility covenants	$ 2,128,051
Total Citibank Holdings Credit Facility [Member] | Interest Rate Base Rate Option 1(b) [Member]
Line of Credit Facility [Line Items]
Line of credit facility, spread on variable rate basis	0.50%
Total Citibank Holdings Credit Facility [Member] | Interest Rate Base Rate Option 1(c) [Member]
Line of Credit Facility [Line Items]
Line of credit facility, description of variable rate basis	% above the one month London Interbank Offered Rate ("LIBOR"), in each case plus the applicable margin
Line of credit facility, spread on variable rate basis	1.00%
Total Citibank Holdings Credit Facility [Member] | Interest Rate Base Rate Option 2 [Member]
Line of Credit Facility [Line Items]
Line of credit facility, description of variable rate basis	periodic fixed rate equal to the Eurodollar Rate plus an applicable margin