Goodwill and Purchased Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in Goodwill

The following table presents changes in goodwill (in millions):

	Access Equipment			Defense		Fire & Emergency			Commercial			Total
Net goodwill at September 30, 2020	$	882.6		$	—	$	106.1		$	20.8		$	1,009.5
Foreign currency translation		(2.0	)		—		—			0.1			(1.9	)
Acquisition		—			44.4		—			—			44.4
Net goodwill at September 30, 2021		880.6			44.4		106.1			20.9			1,052.0
Foreign currency translation		(3.0	)		—		—			—			(3.0	)
Net goodwill at December 31, 2021		877.6			44.4		106.1			20.9			1,049.0
Foreign currency translation		(11.8	)		—		(0.3	)		(0.2	)		(12.3	)
Acquisition		—			—		7.4			—			7.4
Impairment		—			—		—			(2.1	)		(2.1	)
Net goodwill at December 31, 2022	$	865.8		$	44.4	$	113.2		$	18.6		$	1,042.0

Schedule of Company's Goodwill Allocated to the Reportable Segments

The following tables present details of the Company’s goodwill allocated to the reportable segments (in millions):

	December 31, 2022
	Gross		Accumulated Impairment			Net
Access Equipment	$	1,797.9	$	(932.1	)	$	865.8
Defense		44.4		—			44.4
Fire & Emergency		115.2		(2.0	)		113.2
Commercial		188.3		(169.7	)		18.6
	$	2,145.8	$	(1,103.8	)	$	1,042.0

	December 31, 2021
	Gross		Accumulated Impairment			Net
Access Equipment	$	1,809.7	$	(932.1	)	$	877.6
Defense		44.4		—			44.4
Fire & Emergency		108.1		(2.0	)		106.1
Commercial		188.5		(167.6	)		20.9
	$	2,150.7	$	(1,101.7	)	$	1,049.0

	September 30, 2021
	Gross		Accumulated Impairment			Net
Access Equipment	$	1,812.7	$	(932.1	)	$	880.6
Defense		44.4		—			44.4
Fire & Emergency		108.1		(2.0	)		106.1
Commercial		188.5		(167.6	)		20.9
	$	2,153.7	$	(1,101.7	)	$	1,052.0

Schedule of Purchased Intangible Assets

Details of the Company’s total purchased intangible assets were as follows (in millions):

	December 31, 2022
	Weighted- Average Life		Gross		Accumulated Amortization			Net
Amortizable intangible assets:
Distribution network		39.2	$	55.3	$	(37.0	)	$	18.3
Technology-related		12.0		108.3		(104.4	)		3.9
Customer relationships		12.6		576.6		(557.3	)		19.3
Other		10.9		50.2		(22.1	)		28.1
		14.2		790.4		(720.8	)		69.6
Non-amortizable trade names				387.4		—			387.4
			$	1,177.8	$	(720.8	)	$	457.0

	December 31, 2021
	Weighted- Average Life		Gross		Accumulated Amortization			Net
Amortizable intangible assets:
Distribution network		39.2	$	55.4	$	(35.6	)	$	19.8
Technology-related		11.9		104.7		(104.0	)		0.7
Customer relationships		12.6		572.6		(551.3	)		21.3
Other		12.1		23.6		(18.5	)		5.1
		14.4		756.3		(709.4	)		46.9
Non-amortizable trade names				417.1		—			417.1
			$	1,173.4	$	(709.4	)	$	464.0

	September 30, 2021
	Weighted- Average Life		Gross		Accumulated Amortization			Net
Amortizable intangible assets:
Distribution network		39.1	$	55.4	$	(35.1	)	$	20.3
Technology-related		11.9		104.7		(103.9	)		0.8
Customer relationships		12.6		572.6		(550.0	)		22.6
Other		12.1		23.6		(17.6	)		6.0
		14.4		756.3		(706.6	)		49.7
Non-amortizable trade names				417.1		—			417.1
			$	1,173.4	$	(706.6	)	$	466.8