v3.26.1
Goodwill and Intangible Assets (Tables)
 12 Months Ended
Mar. 31, 2026
Intangible Asset, Goodwill and Other [Abstract]  
Goodwill [Table Text Block]
Changes to the carrying amount of goodwill for the years ended March 31, 2026 and 2025 were as follows:
(in millions)HealthcareASTLife SciencesTotal
Balance at March 31, 2024$2,500.9 $1,387.6 $182.2 $4,070.7 
Goodwill acquired2.1 8.5 — 10.6 
Measurement period adjustments to acquired goodwill— (0.5)(11.6)(12.1)
Foreign currency translation adjustments and other6.3 19.9 0.3 26.4 
Balance at March 31, 2025$2,509.3 $1,415.4 $170.9 $4,095.7 
Goodwill acquired8.8 — — 8.8 
Measurement period adjustments to acquired goodwill— — — — 
Divestiture— — — — 
Foreign currency translation adjustments and other21.0 66.8 2.6 90.4 
Balance at March 31, 2026$2,539.0 $1,482.3 $173.5 $4,194.8 
Summary of Finite-Lived and Indefinite-Lived Intangible Assets [Table Text Block] Information regarding our intangible assets is as follows:
(in millions)20262025
March 31,Gross
Carrying
Amount		Accumulated
Amortization		Gross
Carrying
Amount		Accumulated
Amortization
       Customer relationships$2,655.8 $1,344.0 $2,564.3 $1,067.4 
       Non-compete agreements— — 15.1 15.0 
       Patents and technology456.6 303.0 480.3 294.1 
       Trademarks and tradenames235.8 106.8 247.9 105.1 
       Supplier relationships54.8 29.2 54.8 26.5 
       Total$3,403.0 $1,783.0 $3,362.4 $1,508.0 
Schedule of Expected Amortization Expense Based upon the current amount of intangible assets subject to amortization, the amortization expense for each of the five succeeding fiscal years is estimated to be as follows:
(in millions)20272028202920302031
Estimated amortization expense$253.1 $248.2 $246.3 $241.3 $209.1