Business Combination - Summary of Intangible Assets (Details) - USD ($) $ in Thousands		3 Months Ended		10 Months Ended
	Oct. 31, 2019	Jan. 31, 2020	Feb. 01, 2019	Jan. 31, 2020
Business Acquisition [Line Items]
Weighted-Average Useful Life	15 years 6 months	15 years 6 months	14 years 2 months 12 days
Gross Carrying Amount	$ 309,285	$ 309,254	$ 149,046	$ 309,254
Accumulated Amortization	(91,223)	(95,937)	(75,671)	(95,937)
Net	218,062	213,317	73,375	213,317
Total other intangible assets, gross	443,597	443,580	179,688	443,580
Total other intangible assets, net	$ 352,374	347,643	$ 104,017	$ 347,643
The Charles Machine Works, Inc.
Business Acquisition [Line Items]
Weighted-Average Useful Life				16 years 7 months 6 days
Gross Carrying Amount		160,490		$ 160,490
Accumulated Amortization		(13,884)		(13,884)
Net		146,606		146,606
Total other intangible assets, gross		264,190		264,190
Total other intangible assets, net		250,306		$ 250,306
Customer-related | The Charles Machine Works, Inc.
Business Acquisition [Line Items]
Weighted-Average Useful Life				18 years 3 months 18 days
Gross Carrying Amount		130,800		$ 130,800
Accumulated Amortization		(7,193)		(7,193)
Net		$ 123,607		123,607
Developed technology
Business Acquisition [Line Items]
Weighted-Average Useful Life	7 years 7 months 6 days	7 years 7 months 6 days	7 years 7 months 6 days
Gross Carrying Amount	$ 51,911	$ 51,902	$ 31,079	51,902
Accumulated Amortization	(31,289)	(32,264)	(28,774)	(32,264)
Net	$ 20,622	19,638	$ 2,305	$ 19,638
Developed technology | The Charles Machine Works, Inc.
Business Acquisition [Line Items]
Weighted-Average Useful Life				7 years 9 months 18 days
Gross Carrying Amount		20,900		$ 20,900
Accumulated Amortization		(2,885)		(2,885)
Net		$ 18,015		18,015
Trade names
Business Acquisition [Line Items]
Weighted-Average Useful Life	15 years 4 months 24 days	15 years 4 months 24 days	5 years
Gross Carrying Amount	$ 7,496	$ 7,485	$ 2,319	7,485
Accumulated Amortization	(2,109)	(2,208)	(1,850)	(2,208)
Net	$ 5,387	5,277	$ 469	$ 5,277
Trade names | The Charles Machine Works, Inc.
Business Acquisition [Line Items]
Weighted-Average Useful Life				20 years
Gross Carrying Amount		5,200		$ 5,200
Accumulated Amortization		(216)		(216)
Net		4,984		$ 4,984
Backlog | The Charles Machine Works, Inc.
Business Acquisition [Line Items]
Weighted-Average Useful Life				6 months
Gross Carrying Amount		3,590		$ 3,590
Accumulated Amortization		(3,590)		(3,590)
Net		0		0
Trade names | The Charles Machine Works, Inc.
Business Acquisition [Line Items]
Indefinite-lived - trade names		$ 103,700		$ 103,700