Consolidated Statements Of Income And Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended										12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2010
Revenue
Financial Services Revenue									$ 264,347	$ 342,349	$ 1,594,174	$ 1,246,687	$ 1,431,319
Operating Leases, Income Statement, Lease Revenue									4,418	15,888	289,256	97,676	44,316
Other Income									12,406	14,387	77,105	65,625	47,182
Revenues	528,104	514,517	486,511	431,403	394,255	390,681	329,885	295,167	281,171	372,624	1,960,535	1,409,988	1,522,817
Costs and expenses
Operating Expenses									70,441	68,855	397,582	338,540	288,791
Operating Leases, Income Statement, Depreciation Expense on Property Subject to or Held-for-lease									2,106	6,539	211,407	67,088	34,639
Provision for Loan and Lease Losses									26,352	74,618	303,692	178,372	388,058
Interest Expense									36,684	89,364	283,250	204,170	457,222
Restructuring Charges										(39)			668
Business Combination, Acquisition Related Costs									16,322	42,651	20,388
Costs and Expenses									151,905	281,988	1,216,319	788,170	1,169,378
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	145,594	200,649	216,731	181,242	170,115	177,446	144,021	130,236	129,266	90,636	744,216	621,818	353,439
Income Tax Expense (Benefit)									54,633	39,336	281,090	236,291	132,893
Net Income (Loss) Attributable to Parent	90,604	123,948	136,295	112,279	103,664	108,807	95,818	77,238	74,633	51,300	463,126	385,527	220,546
Other comprehensive income
Unrealized (losses) gains on cash flow hedges									(412)	6,255	(2,449)	2,852	43,306
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax									1,819	2,055	5,913	(10,981)	8,230
Income tax benefit (provision)									(151)	3,027	(899)	1,046	18,567
Other Comprehensive Income (Loss), Net of Tax									1,558	5,283	4,363	(9,175)	32,969
Comprehensive Income (Loss), Net of Tax, Attributable to Parent									$ 76,191	$ 56,583	$ 467,489	$ 376,352	$ 253,515
Earnings Per Share, Basic										$ 0.38			$ 1.65
Earnings Per Share, Diluted										$ 0.37			$ 1.60
Weighted Average Number of Shares Outstanding, Basic										135,232,827			133,845,238
Weighted Average Number of Shares Outstanding, Diluted										140,302,755			138,179,945