Note N - Segment and Revenue Information - Summary of Revenue by Products and Services (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
REVENUES	$ 488,410	$ 529,339	$ 973,927	$ 1,030,434
Operating Segments [Member] | Other Operating Segment [Member]
REVENUES	71,744	78,966	153,959	162,790
Operating Segments [Member] | Other Operating Segment [Member] | Aircraft Maintenance Modifications and Part Sales [Member]
REVENUES	36,573	39,165	76,921	81,238
Operating Segments [Member] | Other Operating Segment [Member] | Ground Services [Member]
REVENUES	22,234	24,987	45,455	48,652
Operating Segments [Member] | Other Operating Segment [Member] | Other Including Aviation Fuel Sales [Member]
REVENUES	$ 12,937	$ 14,814	$ 31,583	$ 32,900