FCFI Transaction (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended												0 Months Ended
	Dec. 31, 2010	Dec. 31, 2012	Dec. 31, 2011	Nov. 30, 2010	Dec. 31, 2009	Nov. 30, 2010 AGF Holding Inc.	Nov. 30, 2010 Push-down adjustment	Nov. 30, 2010 Predecessor company	Dec. 31, 2009 Predecessor company	Nov. 30, 2010 Predecessor company Prior to FCFI Transaction	Dec. 31, 2012 FCFI Acquisition LLC AGF Holding Inc.	Dec. 31, 2012 AIG Capital Corporation AGF Holding Inc.	Nov. 30, 2010 SLFI	Nov. 30, 2010 SLFI AGF Holding Inc.	Nov. 30, 2010 SLFI FCFI Acquisition LLC	Nov. 30, 2010 SLFI AIG Capital Corporation
FCFI Transaction
Economic interest acquired (as a percent)						20.00%					80.00%	20.00%			80.00%	20.00%
Assets
Cash and cash equivalents		$ 1,400,000		$ 1,473,796				$ 1,473,796	$ 1,292,621	$ 1,473,796
Investment securities				762,127						762,127
Net finance receivables		11,696,727	13,016,119	14,327,857			(2,349,685)			16,677,542
Allowance for finance receivable losses	(7,120)	(180,136)	(72,000)		(1,516,298)		1,383,768			(1,383,768)
Net finance receivables, less allowance for finance receivable losses				14,327,857			(965,917)			15,293,774
Net other intangible assets		29,065	42,683	83,680			83,680
Other assets		460,106	614,598	1,640,283			154,134			1,486,149
Total assets	18,132,960	14,654,771	15,382,414	18,287,743			(728,103)			19,015,846
Liabilities and Shareholder's Equity
Long-term debt		12,454,316	12,885,392	14,965,669			(1,562,043)			16,527,712
Insurance claims and policyholder liabilities		365,238	327,857	341,201			20,725			320,476
Deferred and accrued taxes				559,597			552,705			6,892
Other liabilities		268,179	338,256	731,940			292,984			438,956
Total liabilities				16,598,407			(695,629)			17,294,036
Shareholder's equity:
Common stock				5,080						5,080
Additional paid-in capital				215,074			(1,463,787)			1,678,861
Accumulated other comprehensive income		29,606	(25,538)				(37,869)			37,869
Retained earnings				1,469,182			1,469,182
Total shareholder's equity				1,689,336			(32,474)	1,721,810	2,375,614	1,721,810
Total liabilities and shareholder's equity				18,287,743			(728,103)			19,015,846
Additional information
Ownership interest (as a percent)						20.00%						20.00%
Ownership of affiliated entity (as a percent)						20.00%					80.00%	20.00%			80.00%	20.00%
Bargain purchase gain	1,469,182												1,469,182	1,500,000
Excess of fair value net assets														71,700
Purchase consideration
Cash plus fair value of AGF Holding shares issued to ACC for purchase of SLFI													148,458	148,458
Fair value of net liabilities of SLFI other than its investment in SLFC													71,696
Fair value of consideration transferred that was allocated to SLFC													220,154
Long-term debt													14,965,669
Other liabilities													1,632,738
Total purchase consideration													16,818,561	17,000,000
Acquisition-date fair value of the consideration transferred
Cash														118,767
Common stock														29,691
Total													148,458	148,458
Fair value adjusted amount
Total assets acquired													18,287,743
Less total liabilities assumed													16,598,407
Net assets acquired													1,689,336
Less fair value of consideration transferred that was allocated to SLFC													220,154
AGF Holding bargain purchase	$ 1,469,182												$ 1,469,182	$ 1,500,000