By Benjamin Horney (October 21, 2015, 5:46 PM EDT) -- Private equity-backed Parques Reunidos SA has at least four suitors vying for the right to acquire the Spanish theme park operator, according to a Wednesday report from Reuters, and the price tag could reach €2 billion ($2.3 billion). According to the report, U.K. private equity firms Advent International and Apax Partners LLP have informed Arle Capital Partners Ltd. of their interest, as have U.S. private equity shops The Carlyle Group LP and KSL Capital Partners LLC. Initial bids were due earlier this month, and Arle hopes to complete a deal before the Spanish general election in December, the report added. Arle had been trying to sell the unit for years, before February reports said Arle put those plans on hold after offers fell short of expectations. Parques Reunidos operates 72 sites around the world, including amusement parks, zoos and water parks....