Finance Receivables (Details 2) (USD $)	1 Months Ended	12 Months Ended			11 Months Ended	1 Months Ended	12 Months Ended		11 Months Ended	1 Months Ended	12 Months Ended		11 Months Ended	1 Months Ended	12 Months Ended		11 Months Ended
	Dec. 31, 2010	Dec. 31, 2012	Dec. 31, 2011	Nov. 30, 2010	Nov. 30, 2010 Predecessor company	Dec. 31, 2010 Personal Loans	Dec. 31, 2012 Personal Loans	Dec. 31, 2011 Personal Loans	Nov. 30, 2010 Personal Loans Predecessor company	Dec. 31, 2010 Retail Sales Finance	Dec. 31, 2012 Retail Sales Finance	Dec. 31, 2011 Retail Sales Finance	Nov. 30, 2010 Retail Sales Finance Predecessor company	Dec. 31, 2010 Real Estate Loans	Dec. 31, 2012 Real Estate Loans	Dec. 31, 2011 Real Estate Loans	Nov. 30, 2010 Real Estate Loans Predecessor company
Maturities of net finance receivables by portfolio segment
2013		$ 1,084,294,000					$ 833,026,000				$ 42,304,000				$ 208,964,000
2014		1,327,697,000					982,181,000				49,735,000				295,781,000
2015		915,423,000					572,517,000				34,907,000				307,999,000
2016		496,294,000					154,155,000				22,703,000				319,436,000
2017		382,124,000					39,977,000				13,750,000				328,397,000
2018+		7,490,895,000					67,876,000				44,958,000				7,378,061,000
Net finance receivables		11,696,727,000	13,016,119,000	14,327,857,000			2,649,732,000	2,685,039,000			208,357,000	369,903,000			8,838,638,000	9,961,177,000
Principal cash collections and such collections as a percentage of average net receivables by portfolio segment
Principal cash collections	245,398,000	2,581,211,000	2,758,214,000		2,942,505,000	112,014,000	1,430,264,000	1,445,421,000	1,373,263,000	27,524,000	222,838,000	285,259,000	560,670,000	105,860,000	928,109,000	1,027,534,000	1,008,572,000
% of average net receivables (as a percent)	20.67%	21.02%	20.41%		18.28%	51.29%	55.07%	55.97%	51.42%	65.87%	77.80%	69.34%	77.65%	11.42%	9.88%	9.77%	7.94%
Unused credit lines		$ 164,500,000	$ 185,500,000