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Goodwill and Intangible Assets (Tables)
 6 Months Ended
Jun. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Changes in Carrying Amount of Goodwill
The changes in the carrying amount of goodwill for the six months ended June 30, 2025, by reportable business segment, were as follows:
HSTFMTFSDPIDEX
Goodwill$2,276.5 $785.2 $390.6 $3,452.3 
   Accumulated goodwill impairment losses(149.8)(20.7)(30.1)(200.6)
Balance at January 1, 20252,126.7 764.5 360.5 3,251.7 
Foreign currency translation80.6 15.8 15.9 112.3 
Measurement period adjustments4.6 — — 4.6 
Balance at June 30, 2025$2,211.9 $780.3 $376.4 $3,368.6 
Schedule of Gross Carrying Value and Accumulated Amortization For Each Major Class of Intangible Asset
The following table provides the gross carrying value and accumulated amortization for each major class of intangible asset at June 30, 2025 and December 31, 2024:
 June 30, 2025December 31, 2024
 Gross
Carrying
Amount		Accumulated
Amortization		NetGross
Carrying
Amount		Accumulated
Amortization		Net
Amortized intangible assets:
Patents$2.6 $(2.1)$0.5 $2.5 $(2.0)$0.5 
Trade names210.8 (69.6)141.2 201.4 (60.0)141.4 
Customer relationships1,125.6 (336.5)789.1 1,078.8 (278.7)800.1 
Unpatented technology323.9 (86.5)237.4 325.4 (85.1)240.3 
Software15.9 (5.6)10.3 15.2 (3.6)11.6 
Total amortized intangible assets1,678.8 (500.3)1,178.5 1,623.3 (429.4)1,193.9 
Indefinite-lived intangible assets:
Banjo trade name62.1 — 62.1 62.1 — 62.1 
Akron Brass trade name28.8 — 28.8 28.8 — 28.8 
Total intangible assets$1,769.7 $(500.3)$1,269.4 $1,714.2 $(429.4)$1,284.8 
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense Based on the intangible asset balances as of June 30, 2025, expected amortization expense for the remaining six months of 2025 and for the years 2026 through 2029 is as follows:
Estimated Amortization
Remainder of 2025$64.9 
2026128.5 
2027125.0 
2028122.1 
2029112.1