REVENUE (Disaggregation of Revenue, by Industry) (Details) - USD ($) $ in Thousands		12 Months Ended
		Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer		$ 1,787,009	$ 2,055,647	$ 1,777,721
Flight Support Group [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer		924,812	1,240,183	1,097,937
Flight Support Group [Member] | Aerospace [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer		669,194	1,004,088	890,059
Flight Support Group [Member] | Defense and Space [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer		213,273	190,076	163,330
Flight Support Group [Member] | Other Industries [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	[1]	42,345	46,019	44,548
Electronic Technologies Group [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer		874,987	834,522	701,827
Electronic Technologies Group [Member] | Aerospace [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer		71,657	85,604	71,235
Electronic Technologies Group [Member] | Defense and Space [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer		577,581	531,029	452,714
Electronic Technologies Group [Member] | Other Industries [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	[2]	225,749	217,889	177,878
Corporate And Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer		$ (12,790)	$ (19,058)	$ (22,043)

[1] (1)    Principally industrial products.

[2] (2)    Principally other electronics and medical products.