Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Intangibles (Movements in maintenance rights) (Details)

v3.19.3.a.u2
Intangibles (Movements in maintenance rights) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Finite-lived Intangible Assets [Roll Forward]    
Maintenance rights at beginning of period $ 1,088,246  
Maintenance rights at end of period 794,798 $ 1,088,246
Maintenance Rights    
Finite-lived Intangible Assets [Roll Forward]    
Maintenance rights at beginning of period 1,088,246 1,464,599
EOL and MR contract maintenance rights expense (76,611) (157,792)
MR contract maintenance rights write-off due to maintenance liability release (19,848) (29,656)
EOL contract maintenance rights write-off due to cash receipt (148,289) (99,671)
EOL and MR contract maintenance rights write-off due to sale of aircraft (48,700) (89,234)
Maintenance rights at end of period $ 794,798 $ 1,088,246