Post-effective amendment to a registration statement that is not immediately effective upon filing

BUSINESS COMBINATIONS - Intangible assets (Details)

v3.21.1
BUSINESS COMBINATIONS - Intangible assets (Details)
Jun. 10, 2019
USD ($)
FAA part 145 certificate (indefinite lived) | Qwest Air Parts, Inc  
Acquired Indefinite-lived Intangible Assets [Line Items]  
Fair value of indefinite intangible assets acquired $ 724,000