Guarantor Consolidating Financial Statements Restatement Tables - Guarantor / Non-Guarantor (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Financial Services Revenue	$ 414,731	$ 358,256
Equity In Income Of Affiliates
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	169,672	181,242
Income Tax Expense (Benefit)	63,729	68,963
Net Income (Loss) Attributable to Parent	105,943	112,279
Notes, Loans and Financing Receivable, Net	11,502,472		10,998,274
Assets	18,754,179		16,197,071
Due to Affiliate
Liabilities	14,273,750		11,817,844
Additional Paid in Capital, Common Stock	3,460,532		3,459,195
Retained Earnings (Accumulated Deficit)	1,029,229		923,286
Stockholders' Equity Attributable to Parent	4,480,429		4,379,227
Amortization of Debt Discount (Premium)	(4,521)	(9,944)
Change In Equity In Income Of Affiliates
Net Cash Provided by (Used in) Operating Activities	315,206	296,129
Payments to Acquire Receivables	1,343,002	1,364,662
Net Proceeds From the Sale of Receivables
Investment in Affiliates - Net Change
Net Cash Provided by (Used in) Investing Activities	(1,076,993)	(562,903)
Increase (Decrease) Due from Affiliates
Net Cash Provided by (Used in) Financing Activities	2,370,404	302,259
Liabilities and Equity	18,754,179		16,197,071
Non-Guarantor Subsidiaries [Member]
Financial Services Revenue	376,087	323,145
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	224,487	233,414
Income Tax Expense (Benefit)	81,234	84,817
Net Income (Loss) Attributable to Parent	143,253	148,597
Notes, Loans and Financing Receivable, Net	11,092,973		9,440,434
Due from Affiliates	1,026,260
Assets	15,424,862		12,179,274
Due to Affiliate			394,118
Liabilities	11,953,839		9,946,854
Additional Paid in Capital, Common Stock	1,212,873		122,425
Retained Earnings (Accumulated Deficit)	1,671,427		1,527,008
Stockholders' Equity Attributable to Parent	3,471,023		2,232,420
Amortization of Debt Discount (Premium)	(4,521)	(9,944)
Net Cash Provided by (Used in) Operating Activities	174,280	209,817
Payments to Acquire Receivables	2,114,409	1,035,664
Net Cash Provided by (Used in) Investing Activities	(2,219,970)	(249,630)
Increase (Decrease) Due from Affiliates	1,400,756	(180,249)
Net Cash Provided by (Used in) Financing Activities	2,071,024	42,092
Liabilities and Equity	15,424,862		12,179,274
Non-Guarantor Subsidiaries [Member] | Scenario, Previously Reported [Member]
Payments to Acquire Receivables		678,690
Net Cash Provided by (Used in) Investing Activities		107,344
Net Cash Provided by (Used in) Financing Activities		(314,882)
Net capital contribution to subsidiaries		513,676
Increase (Decrease) in Due to Affiliates		(103,465)
Non-Guarantor Subsidiaries [Member] | Restatement Adjustment [Member]
Payments to Acquire Receivables		1,035,664
Net Cash Provided by (Used in) Investing Activities		(249,630)
Net Cash Provided by (Used in) Financing Activities		42,092
Net capital contribution to subsidiaries		440,416
Increase (Decrease) in Due to Affiliates		180,249
Consolidation, Eliminations [Member]
Equity In Income Of Affiliates	(258,986)	(266,279)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	(258,986)	(266,279)
Net Income (Loss) Attributable to Parent	(258,986)	(266,279)
Due from Affiliates	(3,131,750)		(2,063,179)
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	(6,821,291)		(5,466,955)
Assets	(9,953,041)		(7,530,134)
Due to Affiliate	(3,131,750)		(2,063,179)
Liabilities	(3,131,750)		(2,063,179)
Additional Paid in Capital, Common Stock	(1,292,060)		(201,612)
Retained Earnings (Accumulated Deficit)	(4,953,309)		(4,693,157)
Stockholders' Equity Attributable to Parent	(6,821,291)		(5,466,955)
Change In Equity In Income Of Affiliates	258,986	266,279
Net Cash Provided by (Used in) Operating Activities
Payments to Acquire Receivables	(2,114,409)	(1,035,664)
Proceeds from sale of consumer finance receivables, net	(2,114,409)
Net Proceeds From the Sale of Receivables		(1,035,664)
Investment in Affiliates - Net Change	(1,101,428)	439,871
Net Cash Provided by (Used in) Investing Activities	1,101,428	(439,871)
Increase (Decrease) Due from Affiliates	(271)
Net Cash Provided by (Used in) Financing Activities	(1,101,102)	440,416
Liabilities and Equity	(9,953,041)		(7,530,134)
Consolidation, Eliminations [Member] | Scenario, Previously Reported [Member]
Payments to Acquire Receivables		678,690
Proceeds from sale of consumer finance receivables, net		(678,690)
Investment in Affiliates - Net Change		(513,131)
Net Cash Provided by (Used in) Investing Activities		(513,131)
Net Cash Provided by (Used in) Financing Activities		513,676
Net capital contribution to subsidiaries		513,676
Consolidation, Eliminations [Member] | Restatement Adjustment [Member]
Payments to Acquire Receivables		1,035,664
Proceeds from sale of consumer finance receivables, net		(1,035,664)
Investment in Affiliates - Net Change		(439,871)
Net Cash Provided by (Used in) Investing Activities		(439,871)
Net Cash Provided by (Used in) Financing Activities		440,416
Net capital contribution to subsidiaries		440,416
Guarantor Subsidiaries [Member]
Financial Services Revenue	38,644	35,111
Equity In Income Of Affiliates	145,660	149,138
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	101,690	103,942
Income Tax Expense (Benefit)	(14,043)	(13,740)
Net Income (Loss) Attributable to Parent	115,733	117,682
Notes, Loans and Financing Receivable, Net	409,499		1,557,840
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	3,433,617		2,192,607
Assets	6,596,320		4,996,911
Due to Affiliate	3,131,750		1,669,061
Liabilities	3,246,052		1,762,376
Additional Paid in Capital, Common Stock	79,187		79,187
Retained Earnings (Accumulated Deficit)	3,281,882		3,166,149
Stockholders' Equity Attributable to Parent	3,350,268		3,234,535
Change In Equity In Income Of Affiliates	(145,660)	(149,138)
Net Cash Provided by (Used in) Operating Activities	113,161	23,740
Payments to Acquire Receivables	1,343,002	1,364,662
Proceeds from sale of consumer finance receivables, net	2,114,409
Net Proceeds From the Sale of Receivables		1,035,664
Investment in Affiliates - Net Change	1,095,350	(444,325)
Net Cash Provided by (Used in) Investing Activities	47,627	131,052
Increase (Decrease) Due from Affiliates	(1,422,169)	117,677
Net Cash Provided by (Used in) Financing Activities	1,422,169	(117,677)
Liabilities and Equity	6,596,320		4,996,911
Guarantor Subsidiaries [Member] | Scenario, Previously Reported [Member]
Proceeds from sale of consumer finance receivables, net		678,690
Investment in Affiliates - Net Change		517,585
Net Cash Provided by (Used in) Investing Activities		(152,662)
Net Cash Provided by (Used in) Financing Activities		166,037
Increase (Decrease) in Due to Affiliates		166,037
Guarantor Subsidiaries [Member] | Restatement Adjustment [Member]
Proceeds from sale of consumer finance receivables, net		1,035,664
Investment in Affiliates - Net Change		444,325
Net Cash Provided by (Used in) Investing Activities		131,052
Net Cash Provided by (Used in) Financing Activities		(117,677)
Increase (Decrease) in Due to Affiliates		$ (117,677)