Quarterly report pursuant to Section 13 or 15(d)

INTANGIBLE ASSETS (Details)

v3.21.2
INTANGIBLE ASSETS (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Schedule Of Intangible Assets And Goodwill [Line Items]    
Goodwill $ 19,860 $ 19,860
Total intangible assets with indefinite lives 30,190 30,190
Qwest | Asset Management Solutions | Certifications    
Schedule Of Intangible Assets And Goodwill [Line Items]    
Total intangible assets with indefinite lives 724 724
Goodwill 13,416 13,416
ALGS | Tech Ops    
Schedule Of Intangible Assets And Goodwill [Line Items]    
Goodwill 379 379
ALGS | Tech Ops | Certifications    
Schedule Of Intangible Assets And Goodwill [Line Items]    
Total intangible assets with indefinite lives 710 710
ACS | Tech Ops    
Schedule Of Intangible Assets And Goodwill [Line Items]    
Goodwill 63 63
ACS | Tech Ops | Certifications    
Schedule Of Intangible Assets And Goodwill [Line Items]    
Total intangible assets with indefinite lives 7,300 7,300
ACS | Tech Ops | Trademarks    
Schedule Of Intangible Assets And Goodwill [Line Items]    
Total intangible assets with indefinite lives 600 600
ACT | Tech Ops    
Schedule Of Intangible Assets And Goodwill [Line Items]    
Goodwill 6,002 6,002
ACT | Tech Ops | FAA Certificates    
Schedule Of Intangible Assets And Goodwill [Line Items]    
Total intangible assets with indefinite lives 796 796
ACT | Tech Ops | Trademarks    
Schedule Of Intangible Assets And Goodwill [Line Items]    
Total intangible assets with indefinite lives $ 200 $ 200