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Long-Term Debt - Foreign Credit Facilities Narrative (Details) - Foreign Credit Facilities [Member] - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Line of Credit Facility [Line Items]    
Line of credit facility, amount outstanding $ 106.0 $ 127.1
Foreign Credit Facilities, Remaining Borrowing Capacity $ 89.1 $ 78.2