CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - UNAUDITED - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2021	Apr. 30, 2020	Apr. 30, 2021	Apr. 30, 2020
Net sales	$ 466,651	$ 468,146	$ 884,553	$ 974,421
Operating costs and expenses:
Cost of sales	286,878	289,256	546,346	597,484
Selling, general and administrative expenses	83,025	70,729	161,174	157,786
Total operating costs and expenses	369,903	359,985	707,520	755,270
Operating income	96,748	108,161	177,033	219,151
Interest expense	(2,083)	(3,759)	(4,531)	(8,042)
Other (expense) income	306	107	1,017	302
Income before income taxes and noncontrolling interests	94,971	104,509	173,519	211,411
Income tax expense	18,500	23,600	20,800	700
Net income from consolidated operations	76,471	80,909	152,719	210,711
Less: Net income attributable to noncontrolling interests	5,798	5,456	11,450	13,370
Net income attributable to HEICO	$ 70,673	$ 75,453	$ 141,269	$ 197,341
Net income per share attributable to HEICO shareholders:
Basic (in dollars per share)	$ 0.52	$ 0.56	$ 1.04	$ 1.47
Diluted (in dollars per share)	$ 0.51	$ 0.55	$ 1.03	$ 1.44
Weighted average number of common shares outstanding:
Basic (in shares)	135,294	134,669	135,252	134,596
Diluted (in shares)	137,814	137,117	137,778	137,269