Business segment - Schedule of Segment Capital Expenditures and Reconciliation to Capital Expenditures (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Total capital expenditures	$ 8,663	$ 13,784
Operating Segments
Segment Reporting Information [Line Items]
Total capital expenditures	8,407	13,635
Operating Segments | Yucatán Peninsula
Segment Reporting Information [Line Items]
Total capital expenditures	2,709	3,423
Operating Segments | Pacific Coast
Segment Reporting Information [Line Items]
Total capital expenditures	536	1,120
Operating Segments | Dominican Republic
Segment Reporting Information [Line Items]
Total capital expenditures	1,874	6,728
Operating Segments | Jamaica
Segment Reporting Information [Line Items]
Total capital expenditures	3,288	2,364
Corporate
Segment Reporting Information [Line Items]
Total capital expenditures	$ 256	$ 149