CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018
Net sales	$ 1,787,009	$ 2,055,647	$ 1,777,721
Operating costs and expenses:
Cost of sales	1,104,882	1,241,807	1,087,006
Selling, general and administrative expenses	305,479	356,743	314,470
Total operating costs and expenses	1,410,361	1,598,550	1,401,476
Operating income	376,648	457,097	376,245
Interest expense	(13,159)	(21,695)	(19,901)
Other income	1,366	2,439	(58)
Income before taxes and noncontrolling interests	364,855	437,841	356,286
Income tax expense	29,000	78,100	70,600
Net income from consolidated operations	335,855	359,741	285,686
Less: Net income attributable to noncontrolling interests	21,871	31,845	26,453
Net income attributable to HEICO	$ 313,984	$ 327,896	$ 259,233
Net income per share attributable to HEICO shareholders:
Basic (in dollars per share)	$ 2.33	$ 2.45	$ 1.96
Diluted (in dollars per share)	$ 2.29	$ 2.39	$ 1.90
Weighted average number of common shares outstanding:
Basic (in shares)	134,754	133,640	132,543
Diluted (in shares)	137,302	137,350	136,696