Quarterly report pursuant to Section 13 or 15(d)

REVENUES - Schedule of Revenues by Service Line (Details)

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REVENUES - Schedule of Revenues by Service Line (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Disaggregation of Revenue [Line Items]        
Revenue $ 319,383 $ 301,737 $ 621,405 $ 589,136
Service        
Disaggregation of Revenue [Line Items]        
Revenue 311,522 294,148 604,453 569,730
Offshore energy services        
Disaggregation of Revenue [Line Items]        
Revenue 195,194 195,080 376,823 384,400
Government services        
Disaggregation of Revenue [Line Items]        
Revenue 87,320 70,107 169,654 136,346
Fixed wing services        
Disaggregation of Revenue [Line Items]        
Revenue 26,448 25,942 52,367 42,748
Other services        
Disaggregation of Revenue [Line Items]        
Revenue $ 2,560 $ 3,019 $ 5,609 $ 6,236