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Foreign Exchange
9 Months Ended
Sep. 30, 2013
Foreign Currency [Abstract]  
Foreign Exchange
Foreign Exchange:
Our consolidated statements of income include foreign exchange transaction (losses) gains of $(2.0) million and $(9.1) million for the three-month and nine-month periods ended September 30, 2013, respectively, and $0.9 million and $(2.5) million for the three-month and nine-month periods ended September 30, 2012, respectively.