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Balance Sheet Information - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Balance Sheet Related Disclosures [Abstract]      
Carrying value of assets classified as held-for-sale $ 1.4    
Depreciation expense for property, plant and equipment 409.7 $ 359.3 $ 325.2
Ship and credit reserves 178.7 230.8  
Operating lease assets $ 110.2    
Weighted average remaining lease term 6 years 4 months 24 days    
Weighted average discount rate 5.40%    
Operating lease commitments not yet commenced $ 0.4    
Total rent expense   $ 43.6 $ 45.3