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BUSINESS DESCRIPTION	12 Months Ended
BUSINESS DESCRIPTION	Dec. 31, 2012
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 and accommodation reservations worldwide through the Booking.com, priceline.com and Agoda.com 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 it acquired in May 2010.