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CONSOLIDATED FINANCIAL STATEMENT DETAILS - Cash and cash equivalents (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Cash and cash equivalents:      
Cash on hand and balances with banks $ 305.6 $ 207.9  
Short-term deposits 269.5 141.1  
Total cash and cash equivalents $ 575.1 $ 349.0 $ 1,025.8