REVENUE - Operating Revenues by Geographic Region (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
REVENUE
Total Operating Revenue	$ 221,700	$ 173,663	$ 667,290	$ 450,464
Domestic
REVENUE
Total Operating Revenue	214,904	167,660	634,963	429,508
Latin America
REVENUE
Total Operating Revenue	6,756	5,447	32,182	19,870
Other
REVENUE
Total Operating Revenue	$ 40	$ 556	$ 145	$ 1,086