Business Combinations - Other Intangible Assets Acquired (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Business Acquisition [Line Items]
Gross Carrying Amount	$ 309,285	$ 148,865
Accumulated Amortization	(91,223)	(73,797)
Net	218,062	75,068
Total other intangible assets, gross	443,597	179,446
Total other intangible assets, net	$ 352,374	105,649
Charles Machine Works, Inc
Business Acquisition [Line Items]
Weighted-Average Useful Life	16 years 7 months 6 days
Gross Carrying Amount	$ 160,490
Accumulated Amortization	(10,742)
Net	149,748
Total other intangible assets, gross	264,190
Total other intangible assets, net	$ 253,448
Customer-related | Charles Machine Works, Inc
Business Acquisition [Line Items]
Weighted-Average Useful Life	18 years 3 months 18 days
Gross Carrying Amount	$ 130,800
Accumulated Amortization	(4,981)
Net	125,819
Developed technology
Business Acquisition [Line Items]
Gross Carrying Amount	51,911	31,029
Accumulated Amortization	(31,289)	(28,471)
Net	$ 20,622	2,558
Developed technology | Charles Machine Works, Inc
Business Acquisition [Line Items]
Weighted-Average Useful Life	7 years 9 months 18 days
Gross Carrying Amount	$ 20,900
Accumulated Amortization	(2,019)
Net	18,881
Trade names
Business Acquisition [Line Items]
Gross Carrying Amount	7,496	2,307
Accumulated Amortization	(2,109)	(1,805)
Net	$ 5,387	$ 502
Trade names | Charles Machine Works, Inc
Business Acquisition [Line Items]
Weighted-Average Useful Life	20 years
Gross Carrying Amount	$ 5,200
Accumulated Amortization	(152)
Net	$ 5,048
Backlog | Charles Machine Works, Inc
Business Acquisition [Line Items]
Weighted-Average Useful Life	6 months
Gross Carrying Amount	$ 3,590
Accumulated Amortization	(3,590)
Net	0
Trade names | Charles Machine Works, Inc
Business Acquisition [Line Items]
Non-amortizable - trade names	$ 103,700