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Borrowings - Colombian Revolving Credit Facility (Details) - Revolving Credit Facility - Colombian Revolving Credit Facility
$ in Millions
9 Months Ended
Sep. 30, 2020
USD ($)
Debt Instrument [Line Items]  
Maximum borrowing capacity $ 5.1
Outstanding borrowings under credit facility $ 2.0
Weighted average interest rate 7.13%
Maturity, term from last draw 3 years
Unused portion of credit agreement $ 3.1
Indicador Bancario De Referencia Rate (IBR)  
Debt Instrument [Line Items]  
Basis spread variable rate 2.74%