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GENERAL AND SIGNIFICANT ACCOUNTING POLICIES - PREPAID EXPENSES AND OTHER ASSETS (Details) - USD ($)
$ in Millions
Mar. 31, 2023
Dec. 31, 2022
Prepaid Expenses and Other Assets:    
Income tax receivables $ 128.9 $ 170.8
Prepaid fuel 21.6 26.3
Prepaid insurance and insurance related receivables 17.6 17.4
Restricted cash - vessel construction obligations 3.9 3.9
Other 23.2 22.9
Total $ 195.2 $ 241.3