Debt (Details) In Thousands, unless otherwise specified	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2012 Corporate Debt USD ($)		Dec. 31, 2011 Corporate Debt USD ($)		Dec. 31, 2012 Senior Term Facility USD ($)		Dec. 31, 2011 Senior Term Facility USD ($)	Dec. 31, 2012 Senior ABL Facility USD ($)		Dec. 31, 2011 Senior ABL Facility USD ($)	Dec. 31, 2012 Senior Notes USD ($)		Dec. 31, 2011 Senior Notes USD ($)		Dec. 31, 2012 8.875% Senior Notes due January 2014 USD ($)	Dec. 31, 2011 8.875% Senior Notes due January 2014 USD ($)	Dec. 31, 2012 7.875% Senior Notes due January 2014 USD ($)	Dec. 31, 2011 7.875% Senior Notes due January 2014 USD ($)	Dec. 31, 2011 7.875% Senior Notes due January 2014 EUR (€)	Dec. 31, 2012 7.50% Senior Notes due October 2018 USD ($)	Dec. 31, 2011 7.50% Senior Notes due October 2018 USD ($)	Dec. 31, 2012 7.375% Senior Notes due January 2021 USD ($)	Dec. 31, 2011 7.375% Senior Notes due January 2021 USD ($)	Dec. 31, 2012 6.75% Senior Notes due April 2019 USD ($)	Dec. 31, 2011 6.75% Senior Notes due April 2019 USD ($)	Dec. 31, 2012 5.875% Senior Notes due 2020 USD ($)	Dec. 31, 2011 5.875% Senior Notes due 2020 USD ($)	Dec. 31, 2012 6.250% Senior Notes due 2022 USD ($)	Dec. 31, 2011 6.250% Senior Notes due 2022 USD ($)	Dec. 31, 2012 Promissory Notes USD ($)		Dec. 31, 2011 Promissory Notes USD ($)	Dec. 31, 2012 Convertible Senior Notes USD ($)		Dec. 31, 2011 Convertible Senior Notes USD ($)	Dec. 31, 2012 Other Corporate Debt USD ($)		Dec. 31, 2011 Other Corporate Debt USD ($)	Dec. 31, 2012 Fleet Debt USD ($)	Dec. 31, 2011 Fleet Debt USD ($)	Dec. 31, 2012 Donlen GN II Variable Funding Note USD ($)		Dec. 31, 2011 Donlen GN II Variable Funding Note USD ($)		Dec. 31, 2012 U.S. Fleet Variable Funding Notes USD ($)	Dec. 31, 2011 U.S. Fleet Variable Funding Notes USD ($)	Dec. 31, 2012 U.S. Fleet Variable Funding Notes Series 2009-1 USD ($)		Dec. 31, 2011 U.S. Fleet Variable Funding Notes Series 2009-1 USD ($)		Dec. 31, 2012 U.S. Fleet Variable Funding Notes Series 2010-2 USD ($)		Dec. 31, 2011 U.S. Fleet Variable Funding Notes Series 2010-2 USD ($)		Dec. 31, 2012 U.S. Fleet Variable Funding Notes Series 2011-2 USD ($)		Dec. 31, 2011 U.S. Fleet Variable Funding Notes Series 2011-2 USD ($)		Dec. 31, 2012 U.S. Fleet Medium Term Notes USD ($)	Dec. 31, 2011 U.S. Fleet Medium Term Notes USD ($)	Dec. 31, 2012 U.S. Fleet Medium Term Notes Series 2009-2 Notes USD ($)		Dec. 31, 2011 U.S. Fleet Medium Term Notes Series 2009-2 Notes USD ($)		Dec. 31, 2012 U.S. Fleet Medium Term Notes Series 2010-1 Notes USD ($)		Dec. 31, 2011 U.S. Fleet Medium Term Notes Series 2010-1 Notes USD ($)		Dec. 31, 2012 U.S. Fleet Medium Term Notes Series 2011-1 Notes USD ($)		Dec. 31, 2011 U.S. Fleet Medium Term Notes Series 2011-1 Notes USD ($)		Dec. 31, 2012 RCFC U.S. ABS Program USD ($)		Dec. 31, 2011 RCFC U.S. ABS Program USD ($)		Dec. 31, 2012 RCFC Series 2010-3 Notes USD ($)		Dec. 31, 2011 RCFC Series 2010-3 Notes USD ($)		Dec. 31, 2012 RCFC Series 2011-1 Notes USD ($)		Dec. 31, 2011 RCFC Series 2011-1 Notes USD ($)		Dec. 31, 2012 RCFC Series 2011-2 Notes USD ($)		Dec. 31, 2011 RCFC Series 2011-2 Notes USD ($)		Dec. 31, 2012 Other Fleet Debt USD ($)	Dec. 31, 2011 Other Fleet Debt USD ($)	Dec. 31, 2012 U.S. Fleet Financing Facility USD ($)		Dec. 31, 2011 U.S. Fleet Financing Facility USD ($)	Dec. 31, 2012 European Revolving Credit Facility USD ($)		Dec. 31, 2011 European Revolving Credit Facility USD ($)	Dec. 31, 2012 European Fleet Notes USD ($)		Dec. 31, 2011 European Fleet Notes USD ($)	Dec. 31, 2012 European Securitization USD ($)		Dec. 31, 2011 European Securitization USD ($)		Dec. 31, 2012 Canadian Securitization USD ($)		Dec. 31, 2011 Canadian Securitization USD ($)		Dec. 31, 2012 Dollar Thrifty Sponsored Canadian Securitization USD ($)		Dec. 31, 2011 Dollar Thrifty Sponsored Canadian Securitization USD ($)		Dec. 31, 2012 Australian Securitization USD ($)		Dec. 31, 2011 Australian Securitization USD ($)		Dec. 31, 2012 Brazilian Fleet Financing USD ($)		Dec. 31, 2011 Brazilian Fleet Financing USD ($)	Dec. 31, 2012 Capitalized Leases USD ($)		Dec. 31, 2011 Capitalized Leases USD ($)
Debt Instrument [Line Items]
Average Interest Rate (as a percent)							3.75%	[1]		2.47%	[1]		6.74%	[1],[2]																		6.96%	[1]		5.25%	[1]		4.40%	[1]				1.15%	[1],[3]					1.11%	[1],[3]													5.11%	[1],[3]			3.77%	[1],[3]			2.86%	[1],[3]							1.06%	[1],[3],[4]			2.81%	[1],[3],[4]			3.21%	[1],[3],[4]					3.27%	[1]		2.86%	[1]		8.50%	[1]		2.48%	[1],[3]			2.16%	[1],[3]			2.13%	[1],[3],[4]			4.61%	[1],[3]			13.07%	[1]		4.40%	[1]
Outstanding principal							$ 2,125,500		$ 1,389,500	$ 195,000		$ 0	$ 3,650,000	[2]	$ 2,638,600	[2]		$ 162,300		$ 276,300	€ 213,500	$ 700,000	$ 700,000	$ 500,000	$ 500,000	$ 1,250,000	$ 1,000,000	$ 700,000	$ 0	$ 500,000	$ 0	$ 48,700		$ 224,700	$ 474,700		$ 474,700	$ 88,700		$ 49,600			$ 899,300	[3]	$ 811,200	[3]	$ 2,350,000	$ 1,345,000	$ 2,350,000	[3]	$ 1,000,000	[3]	$ 0	[3]	$ 170,000	[3]		[3]	$ 175,000	[3]	$ 2,443,700	$ 2,732,100	$ 1,095,900	[3]	$ 1,384,300	[3]	$ 749,800	[3]	$ 749,800	[3]	$ 598,000	[3]	$ 598,000	[3]	$ 1,419,000	[3]	$ 0	[3]	$ 519,000	[3],[4]	$ 0	[3],[4]	$ 500,000	[3],[4]	$ 0	[3],[4]	$ 400,000	[3],[4]	$ 0	[3],[4]	$ 1,791,300	$ 1,724,000	$ 166,000		$ 136,000	$ 185,300		$ 200,600	$ 529,400		$ 517,700	$ 242,200	[3]	$ 256,200	[3]	$ 100,500	[3]	$ 68,300	[3]	$ 55,300	[3],[4]	$ 0	[3],[4]	$ 148,900	[3]	$ 169,300	[3]	$ 14,000		$ 23,100	$ 337,600		$ 363,700
Unamortized Net Discount			37,300	[5]	72,300	[5]																													40,600		65,500				(12,100)	10,900
Total Debt	$ 15,448,624	$ 11,317,090	$ 6,545,300		$ 4,704,800																																				$ 8,903,300	$ 6,612,300

[1] As applicable, reference is to the December 31, 2012 weighted average interest rate (weighted by principal balance).

[2] References to our "Senior Notes" include the series of Hertz's unsecured senior notes set forth in the table below. As of December 31, 2012 and December 31, 2011, the outstanding principal amount for each such series of the Senior Notes is also specified below. Outstanding Principal (in millions) Senior NotesDecember 31, 2012 December 31, 2011 8.875% Senior Notes due January 2014$— $162.3 7.875% Senior Notes due January 2014— 276.3 €(213.5)7.50% Senior Notes due October 2018700.0 700.0 6.75% Senior Notes due April 20191,250.0 1,000.0 5.875% Senior Notes due October 2020700.0 — 7.375% Senior Notes due January 2021500.0 500.0 6.25% Senior Notes due October 2022500.0 — $3,650.0 $2,638.6

[3] Maturity reference is to the "expected final maturity date" as opposed to the subsequent "legal maturity date." The expected final maturity date is the date by which Hertz and investors in the relevant indebtedness expect the relevant indebtedness to be repaid. The legal final maturity date is the date on which the relevant indebtedness is legally due and payable.

[4] RCFC U.S. ABS Program and the Dollar Thrifty-Sponsored Canadian Securitization represent fleet debt acquired in connection with the Dollar Thrifty acquisition on November 19, 2012.

[5] As of December 31, 2012 and 2011, $40.6 million and $65.5 million, respectively, of the unamortized corporate discount relates to the 5.25% Convertible Senior Notes.