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BUSINESS DESCRIPTION	12 Months Ended
BUSINESS DESCRIPTION	Dec. 31, 2011
Nature Of Operations [Abstract]
BUSINESS DESCRIPTION	BUSINESS DESCRIPTION Priceline.com Incorporated (the "Priceline Group", or the "Company") is a leading online travel company that offers its customers hotel room reservations at over 210,000 hotels worldwide through the Booking.com, priceline.com and Agoda brands. In the United States, the Company also offers its customers reservations for car rentals, airline tickets, vacation packages, destination services and cruises through the priceline.com brand. The Company offers car rental reservations worldwide through rentalcars.com (formerly known as TravelJigsaw), which we acquired in May 2010.