Goodwill and Purchased Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in Goodwill

The following table presents changes in goodwill during the six months ended June 30, 2024 (in millions):

	Access			Defense			Vocational		Total
Net goodwill at December 31, 2023	$	979.9		$	44.4		$	392.1	$	1,416.4
Impairment		—			(38.7	)		—		(38.7	)
Foreign currency translation		(8.7	)		—			—		(8.7	)
Acquisition		—			—			1.7		1.7
Net goodwill at June 30, 2024	$	971.2		$	5.7		$	393.8	$	1,370.7

Schedule of Company's Goodwill Allocated to the Reportable Segments

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

	June 30, 2024							December 31, 2023
	Gross		Accumulated Impairment			Net		Gross		Accumulated Impairment			Net
Access	$	1,903.3	$	(932.1	)	$	971.2	$	1,912.0	$	(932.1	)	$	979.9
Defense		44.4		(38.7	)		5.7		44.4		—			44.4
Vocational		563.2		(169.4	)		393.8		561.5		(169.4	)		392.1
	$	2,510.9	$	(1,140.2	)	$	1,370.7	$	2,517.9	$	(1,101.5	)	$	1,416.4

Schedule of Purchased Intangible Assets

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

	June 30, 2024							December 31, 2023
	Gross		Accumulated Amortization			Net		Gross		Accumulated Amortization			Net
Amortizable intangible assets:
Customer relationships	$	814.5	$	(589.7	)	$	224.8	$	819.5	$	(574.6	)	$	244.9
Trade names		109.1		(13.7	)		95.4		118.6		(7.5	)		111.1
Technology-related		165.6		(113.1	)		52.5		166.5		(108.2	)		58.3
Distribution network		55.3		(39.1	)		16.2		55.3		(38.4	)		16.9
Other		37.4		(29.3	)		8.1		37.5		(25.2	)		12.3
		1,181.9		(784.9	)		397.0		1,197.4		(753.9	)		443.5
Non-amortizable trade names		386.6		—			386.6		386.7		—			386.7
	$	1,568.5	$	(784.9	)	$	783.6	$	1,584.1	$	(753.9	)	$	830.2

Schedule of Estimated Future Amortization Expense for Purchased Intangible Assets

Estimated future amortization expense for purchased intangible assets is as follows (in millions):

Years:
2024 (remaining six months)	$	30.0
2025		51.7
2026		49.0
2027		49.0
2028		45.2
2029		41.8