Goodwill and Intangible Assets (Tables)

9 Months Ended

Jun. 30, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The following table sets forth intangible assets by class:

	June 30, 2025						September 30, 2024
	Carrying Amount		Accumulated Amortization		Net		Carrying Amount		Accumulated Amortization		Net
Indefinite lived
Trade names and brands	$	601.7	$	—	$	601.7	$	597.7	$	—	$	597.7
Amortizable
Trade names and brands	$	340.0	$	116.0	$	224.0	$	339.8	$	104.0	$	235.8
Technology and patents	80.2		78.2		2.0		79.7		77.3		2.4
Customer related and other	273.3		171.7		101.6		272.5		159.9		112.6
Amortizable intangible assets	693.5		365.9		327.6		692.0		341.2		350.8
Total intangible assets	$	1,295.2	$	365.9	$	929.3	$	1,289.7	$	341.2	$	948.5

Schedule of Amortizable Intangible Assets

The following table sets forth intangible assets by class:

	June 30, 2025						September 30, 2024
	Carrying Amount		Accumulated Amortization		Net		Carrying Amount		Accumulated Amortization		Net
Indefinite lived
Trade names and brands	$	601.7	$	—	$	601.7	$	597.7	$	—	$	597.7
Amortizable
Trade names and brands	$	340.0	$	116.0	$	224.0	$	339.8	$	104.0	$	235.8
Technology and patents	80.2		78.2		2.0		79.7		77.3		2.4
Customer related and other	273.3		171.7		101.6		272.5		159.9		112.6
Amortizable intangible assets	693.5		365.9		327.6		692.0		341.2		350.8
Total intangible assets	$	1,295.2	$	365.9	$	929.3	$	1,289.7	$	341.2	$	948.5

Amortization expense was $7.8 and $23.3 for the three and nine months ended June 30, 2025, respectively. Amortization expense was $7.7 and $23.3 for the three and nine months ended June 30, 2024, respectively. Estimated amortization expense for amortizable intangible assets is as follows:

	Estimated amortization expense
Remainder of fiscal year 2025	$	7.8
2026	30.8
2027	30.6
2028	30.5
2029	30.5
2030	30.5
Thereafter	166.9