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Income taxes - Schedule of Statutory Tax Rates (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Taxes [Line Items]
Statutory tax rate (as a percent)	22.90%	36.60%	42.70%
Puerto Rico
Income Taxes [Line Items]
Statutory tax rate (as a percent)	18.50%	18.50%	20.00%
Curacao
Income Taxes [Line Items]
Statutory tax rate (as a percent)	22.00%	22.00%	22.00%
USVI
Income Taxes [Line Items]
Statutory tax rate (as a percent)	22.50%	22.50%	22.50%
Aruba, Panama, Uruguay and Netherlands
Income Taxes [Line Items]
Statutory tax rate (as a percent)	25.00%	25.00%	25.00%
Ecuador
Income Taxes [Line Items]
Statutory tax rate (as a percent)	25.00%	25.00%	28.00%
Chile
Income Taxes [Line Items]
Statutory tax rate (as a percent)	27.00%	27.00%	27.00%
Martinique, French Guyana and Guadeloupe
Income Taxes [Line Items]
Statutory tax rate (as a percent)	28.00%	31.00%	33.30%
Peru
Income Taxes [Line Items]
Statutory tax rate (as a percent)	29.50%	29.50%	29.50%
Trinidad and Tobago
Income Taxes [Line Items]
Statutory tax rate (as a percent)	30.00%	25.00%	25.00%
Argentina Costa Rica and México
Income Taxes [Line Items]
Statutory tax rate (as a percent)	30.00%	30.00%	30.00%
Colombia
Income Taxes [Line Items]
Statutory tax rate (as a percent)	32.00%	33.00%	37.00%
Brazil and Venezuela
Income Taxes [Line Items]
Statutory tax rate (as a percent)	34.00%	34.00%	34.00%

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Income Taxes [Line Items]

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No definition available.

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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 6.I.Fact.4)
-URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

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