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Long-Term Debt - Finance Lease Obligations (Details)
$ in Millions
Dec. 31, 2019
USD ($)
Debt Instrument [Line Items]  
Finance lease obligations $ 0.1
Finance lease obligations | Minimum  
Debt Instrument [Line Items]  
Debt instrument, interest rate 1.00%
Finance lease obligations | Maximum  
Debt Instrument [Line Items]  
Debt instrument, interest rate 5.20%