Acquisitions - Additional Information (Detail) - USD ($) $ in Thousands								12 Months Ended
	Oct. 17, 2018	Jan. 02, 2018	Mar. 31, 2017	Feb. 16, 2017	Feb. 01, 2017	Jan. 03, 2017	Sep. 01, 2016	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2016
Business Acquisition [Line Items]
Acquisition of businesses, net of cash acquired								$ 50,586	$ 805,943	$ 42,650
Goodwill								1,608,018	1,589,210	1,107,137
Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Goodwill								$ 1,194,969	$ 1,172,857	$ 697,346
2017 Acquisition [Member]
Business Acquisition [Line Items]
Goodwill			$ 434,123
Customer Relationships [Member]
Business Acquisition [Line Items]
Intangible assets amortization period								14 years
Trade Names [Member]
Business Acquisition [Line Items]
Intangible assets amortization period								15 years
Non-compete Agreements [Member]
Business Acquisition [Line Items]
Intangible assets amortization period								3 years
Cladach Nua Teoranta [Member] | 2018 Acquisition [Member]
Business Acquisition [Line Items]
Acquired percent of the outstanding shares	100.00%
Acquisition of businesses, net of cash acquired	$ 5,222
Acquisition of business, earn-out liability	1,131
Goodwill	2,905
Identifiable intangible assets	1,218
Cladach Nua Teoranta [Member] | Customer Relationships [Member] | 2018 Acquisition [Member]
Business Acquisition [Line Items]
Identifiable intangible assets	$ 812
Intangible assets amortization period	10 years
Cladach Nua Teoranta [Member] | Trade Names [Member] | 2018 Acquisition [Member]
Business Acquisition [Line Items]
Identifiable intangible assets	$ 203
Intangible assets amortization period	15 years
Cladach Nua Teoranta [Member] | Technology-Based Intangible Assets [Member] | 2018 Acquisition [Member]
Business Acquisition [Line Items]
Identifiable intangible assets	$ 203
Intangible assets amortization period	15 years
Sonoscan, Inc. [Member] | 2018 Acquisition [Member]
Business Acquisition [Line Items]
Acquired percent of the outstanding shares		100.00%
Acquisition of businesses, net of cash acquired		$ 46,018
Goodwill		22,775
Identifiable intangible assets		7,910
Cash acquired from business acquisition		655
Sonoscan, Inc. [Member] | Customer Relationships [Member] | 2018 Acquisition [Member]
Business Acquisition [Line Items]
Identifiable intangible assets		$ 1,700
Intangible assets amortization period		7 years
Sonoscan, Inc. [Member] | Trade Names [Member] | 2018 Acquisition [Member]
Business Acquisition [Line Items]
Identifiable intangible assets		$ 3,300
Intangible assets amortization period		11 years
Sonoscan, Inc. [Member] | Technology-Based Intangible Assets [Member] | 2018 Acquisition [Member]
Business Acquisition [Line Items]
Identifiable intangible assets		$ 2,500
Intangible assets amortization period		7 years
Sonoscan, Inc. [Member] | Non-compete Agreements [Member] | 2018 Acquisition [Member]
Business Acquisition [Line Items]
Identifiable intangible assets		$ 410
Intangible assets amortization period		5 years
Vention [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Acquisition of businesses, net of cash acquired			705,000
Goodwill			434,123
Identifiable intangible assets			286,000
Cash acquired from business acquisition			3,313
Acquisition of businesses, Cash and other closing adjustments			10,726
Business combination, goodwill, tax deductible amount			37,200
Vention [Member] | Customer Relationships [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Identifiable intangible assets			$ 240,000
Intangible assets amortization period			14 years
Vention [Member] | Trade Names [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Identifiable intangible assets			$ 2,000
Intangible assets amortization period			6 years
Vention [Member] | Technology-Based Intangible Assets [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Identifiable intangible assets			$ 44,000
Vention [Member] | Technology-Based Intangible Assets Amortized over 14 Years [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Identifiable intangible assets			$ 36,000
Intangible assets amortization period			14 years
Vention [Member] | Technology-Based Intangible Assets Amortized over 10 Years [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Identifiable intangible assets			$ 8,000
Intangible assets amortization period			10 years
InterSelect GmbH [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Acquired percent of the outstanding shares				100.00%
Goodwill				$ 3,548
Identifiable intangible assets				1,879
Cash acquired from business acquisition				492
Acquisition of businesses, net of cash acquired				5,432
InterSelect GmbH [Member] | Customer Relationships [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Identifiable intangible assets				$ 1,109
Intangible assets amortization period				9 years
InterSelect GmbH [Member] | Trade Names [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Identifiable intangible assets				$ 348
Intangible assets amortization period				12 years
InterSelect GmbH [Member] | Technology-Based Intangible Assets [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Identifiable intangible assets				$ 422
Intangible assets amortization period				9 years
Plas-Pak Industries, Inc. [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Acquired percent of the outstanding shares					100.00%
Acquisition of businesses, net of cash acquired					$ 70,798
Goodwill					24,995
Identifiable intangible assets					33,800
Cash acquired from business acquisition					543
Plas-Pak Industries, Inc. [Member] | Customer Relationships [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Identifiable intangible assets					$ 23,700
Intangible assets amortization period					17 years
Plas-Pak Industries, Inc. [Member] | Trade Names [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Identifiable intangible assets					$ 4,100
Intangible assets amortization period					12 years
Plas-Pak Industries, Inc. [Member] | Technology-Based Intangible Assets [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Identifiable intangible assets					$ 5,000
Intangible assets amortization period					9 years
Plas-Pak Industries, Inc. [Member] | Non-compete Agreements [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Identifiable intangible assets					$ 1,000
Intangible assets amortization period					5 years
ACE Production Technologies Inc [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Goodwill						$ 6,383
Identifiable intangible assets						5,010
Acquisition of businesses, net of cash acquired						13,761
ACE Production Technologies Inc [Member] | Customer Relationships [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Identifiable intangible assets						$ 2,800
Intangible assets amortization period						7 years
ACE Production Technologies Inc [Member] | Trade Names [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Identifiable intangible assets						$ 1,000
Intangible assets amortization period						11 years
ACE Production Technologies Inc [Member] | Technology-Based Intangible Assets [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Identifiable intangible assets						$ 1,100
Intangible assets amortization period						7 years
ACE Production Technologies Inc [Member] | Non-compete Agreements [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Identifiable intangible assets						$ 110
Intangible assets amortization period						3 years
LinkTech Quick Couplings Inc [Member] | 2016 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Acquired percent of the outstanding shares							100.00%
Acquisition of businesses, net of cash acquired							$ 43,348
Goodwill							25,867
Identifiable intangible assets							14,610
Cash acquired from business acquisition							36
LinkTech Quick Couplings Inc [Member] | Customer Relationships [Member] | 2016 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Identifiable intangible assets							$ 8,600
Intangible assets amortization period							11 years
LinkTech Quick Couplings Inc [Member] | Trade Names [Member] | 2016 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Identifiable intangible assets							$ 2,800
Intangible assets amortization period							12 years
LinkTech Quick Couplings Inc [Member] | Technology-Based Intangible Assets [Member] | 2016 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Identifiable intangible assets							$ 2,300
Intangible assets amortization period							8 years
LinkTech Quick Couplings Inc [Member] | Non-compete Agreements [Member] | 2016 Acquisition [Member] | Advanced Technology Systems [Member]
Business Acquisition [Line Items]
Identifiable intangible assets							$ 910
Intangible assets amortization period							5 years