Taxes Receivable and Payable (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Current
VAT Receivable	$ 31,890	$ 35,977
Income Tax Receivable	15,882	13,948
Tax Receivable	47,772	49,925
Long-Term
VAT Receivable	0	28,485
Income Tax Receivable	14,447	14,150
Tax Receivable	14,447	42,635
Current
VAT Payable	5,938	0
Total Taxes Receivable net of Taxes Payable	56,281	$ 92,560
Net VAT Receivable
Beginning balance	64,462
Collected through direct government refunds	(518)
Collected through sales contracts	(70,881)
Taxes paid	38,278
Foreign exchange loss	(5,389)
Ending Balance	25,952
Income Tax Receivable
Beginning balance	28,098
Collected through direct government refunds	(14,228)
Collected through sales contracts	0
Taxes paid	19,923
Foreign exchange loss	(3,464)
Ending balance	30,329
Total Net Taxes Receivable
Beginning balance	92,560
Collected through direct government refunds	(14,746)
Collected through sales contracts	(70,881)
Taxes paid	58,201
Foreign exchange loss	(8,853)
Ending balance	$ 56,281
Colombia
Taxes Receivable [Line Items]
Value added tax, percent	19.00%