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Goodwill and Intangible Assets
 3 Months Ended
Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets Goodwill and Intangible Assets
The following table sets forth goodwill by segment:
Wet
Shave		Sun and Skin
Care		Feminine
Care		Total
Gross balance as of September 30, 2024$1,146.0 $357.4 $206.2 $1,709.6 
Accumulated goodwill impairment(369.0)(2.0)— (371.0)
Net balance as of September 30, 2024$777.0 $355.4 $206.2 $1,338.6 
Changes in the three months ended December 31, 2024
Cumulative translation adjustment$(6.3)$(1.1)$(2.5)$(9.9)
Gross balance as of December 31, 2024
$1,139.7 $356.3 $203.7 $1,699.7 
Accumulated goodwill impairment(369.0)(2.0)— (371.0)
Net balance as of December 31, 2024
$770.7 $354.3 $203.7 $1,328.7 
The following table sets forth intangible assets by class:
December 31, 2024September 30, 2024
Carrying
Amount		Accumulated
Amortization		Net
Carrying
Amount		Accumulated
Amortization		Net
Indefinite lived
Trade names and brands$592.2 $— $592.2 $597.7 $— $597.7 
Amortizable
Trade names and brands$339.6 $107.7 $231.9 $339.8 $104.0 $235.8 
Technology and patents79.2 76.9 2.3 79.7 77.3 2.4 
Customer related and other269.7 161.8 107.9 272.5 159.9 112.6 
Amortizable intangible assets688.5 346.4 342.1 692.0 341.2 350.8 
Total intangible assets$1,280.7 $346.4 $934.3 $1,289.7 $341.2 $948.5 

Amortization expenses were $7.8 and $7.8 for the three months ended December 31, 2024 and 2023, respectively. Estimated amortization expense for amortizable intangible assets is as follows:
Estimated amortization expense
Remainder of fiscal year 2025$23.2 
202630.6 
202730.4 
202830.4 
202930.3 
203030.3 
Thereafter166.9 

Goodwill and intangible assets deemed to have an indefinite life are not amortized but are instead reviewed annually for impairment or when indicators of a potential impairment are present. The Company’s annual impairment testing date is July 1. An interim impairment analysis may indicate that carrying amounts of goodwill and other intangible assets require adjustment or that remaining useful lives should be revised. The Company determined there were no triggering events requiring an interim impairment analysis during the three months ended December 31, 2024.