Operating Segments - Segments (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2020	Apr. 30, 2019
Segment Reporting Information [Line Items]
Net external sales	$ 529,478	$ 551,119	$ 1,024,394	$ 1,049,029
Operating profit (loss)	125,029	128,896	200,122	213,177
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net external sales	529,478	551,119	1,024,394	1,049,029
Operating profit (loss)	125,029	128,896	200,122	213,177
Operating Segments [Member] | Industrial Precision Solutions [Member]
Segment Reporting Information [Line Items]
Net external sales	282,274	301,824	546,073	565,277
Operating profit (loss)	76,454	85,481	132,858	140,890
Operating Segments [Member] | Advanced Technology Solutions [Member]
Segment Reporting Information [Line Items]
Net external sales	247,204	249,295	478,321	483,752
Operating profit (loss)	58,689	56,535	90,976	97,320
Corporate [Member]
Segment Reporting Information [Line Items]
Operating profit (loss)	$ (10,114)	$ (13,120)	$ (23,712)	$ (25,033)