Note N - Segment and Revenue Information - Summary of Revenue by Products and Services (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
REVENUES	$ 485,517	$ 501,095
Operating Segments [Member] | Other Operating Segment [Member]
REVENUES	82,215	83,824
Operating Segments [Member] | Other Operating Segment [Member] | Aircraft Maintenance Modifications and Part Sales [Member]
REVENUES	40,348	42,073
Operating Segments [Member] | Other Operating Segment [Member] | Ground Services [Member]
REVENUES	23,221	23,665
Operating Segments [Member] | Other Operating Segment [Member] | Other Including Aviation Fuel Sales [Member]
REVENUES	$ 18,646	$ 18,086