Accrued maintenance liability (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2019 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Accrued Maintenance Liability [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Schedule of movements in accrued maintenance liability |
Movements in accrued maintenance liability during the years ended December 31, 2019 and 2018 were as follows:
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- Definition Accrued Maintenance Liability [Abstract] No definition available.
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- Definition Schedule Of Movements In Accrued Maintenance Liability [Table Text Block] No definition available.
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