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Income taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2020
Income Tax Disclosure [Abstract] |  |
Tax loss carryforwards | $ 144,759 | $ 186,781
Purchase price allocation adjustment | 15,158 | 12,247
Property and equipment, tax inflation | 36,690 | 31,080
Other accrued payroll and other liabilities | 33,065 | 29,622
Share-based compensation | 2,062 | 1,719
Provision for contingencies, bad debts and obsolescence | 2,534 | 4,621
Other deferred tax assets | 56,927 | 75,121
Other deferred tax liabilities | (32,280) | (47,593)
Property and equipment - difference in depreciation rates | (418) | (7,902)
Valuation allowance | (194,426) | (235,196)
Net deferred tax asset | 64,071 | 50,500
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards |  | 656,119
Brazil |  |
Operating Loss Carryforwards [Line Items] |  |
Difference in depreciation of leases |  | 51,772
Brazil, Mexico, and Colombia |  |
Operating Loss Carryforwards [Line Items] |  |
Provision for regular expenses | 10,376 | 10,098
Puerto Rico |  |
Operating Loss Carryforwards [Line Items] |  |
Bad debt expense | 30,524 |
Argentina and Brazil |  |
Operating Loss Carryforwards [Line Items] |  |
Foreign currency translation adjustment | $ 4,218 |
Expire Between 2021 and 2025 |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards |  | 145,127
Expiring After 2025 |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards |  | 317,650
Do Not Expire |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards |  | $ 193,342

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