GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

12 Months Ended

Oct. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Goodwill

(in millions)	Business & Industry		Manufacturing & Distribution		Education		Aviation		Technical Solutions		Total
Balance at October 31, 2022	$	1,087.8	$	502.2	$	459.3	$	68.7	$	367.4	$	2,485.6
Acquisitions	1.3		—		—		—		(0.1)		1.1
Foreign currency translation	3.6		—		—		0.3		0.8		4.7
Balance at October 31, 2023	$	1,092.7	$	502.2	$	459.3	$	69.0	$	368.0	$	2,491.3
Acquisitions (1)	—		—		—		—		80.6		80.6
Foreign currency translation	2.6		—		—		0.4		1.1		4.1
Balance at October 31, 2024	$	1,095.5	$	502.2	$	459.3	$	69.4	$	449.6	$	2,575.9

(1) During 2024, goodwill increased primarily as a result of the Quality Uptime Acquisition. See Note 3, “Acquisitions”, for additional information.

Schedule of Other Intangible Assets

Other Intangible Assets

	As of October 31,
	2024						2023
(in millions)	Gross Carrying Amount		Accumulated Amortization		Total		Gross Carrying Amount		Accumulated Amortization		Total
Customer contracts and relationships	$	748.2	$	(467.2)	$	281.0	$	714.1	$	(413.2)	$	300.9
Trademarks and trade names	12.7		(11.7)		1.0		12.1		(11.1)		1.0
Contract rights and other	0.7		(0.3)		0.5		15.0		(14.0)		1.1
Total(1)	$	761.7	$	(479.3)	$	282.4	$	741.2	$	(438.3)	$	302.9

(1) These intangible assets are being amortized over the expected period of benefit, with a weighted average life of approximately 11 years.

Schedule of Estimated Annual Amortization Expense

Estimated Annual Amortization Expense for Each of the Next Five Years

(in millions)	2025		2026		2027		2028		2029
Estimated amortization expense(1)	$	51.7	$	44.8	$	39.0	$	33.8	$	28.5

(1) These amounts could vary as acquisitions of additional intangible assets occur in the future and as acquisition accounting is finalized for existing acquisitions.