Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Operating Segment Information and Concentrations of Risk - Summary of Geographical Information (Details)

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Operating Segment Information and Concentrations of Risk - Summary of Geographical Information (Details) - USD ($)
$ in Millions
 12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Segment Reporting Information [Line Items]      
Net sales $ 3,936.3 $ 3,777.1 $ 3,614.7
Total Identifiable Assets 4,912.6 4,479.1  
Operating Segments      
Segment Reporting Information [Line Items]      
Total Identifiable Assets 3,175.0 2,979.7  
General Corporate      
Segment Reporting Information [Line Items]      
Total Identifiable Assets 1,737.6 1,499.4  
North America      
Segment Reporting Information [Line Items]      
Net sales 2,891.4 2,787.6 2,551.3
North America | Operating Segments      
Segment Reporting Information [Line Items]      
Total Identifiable Assets 1,879.7 1,679.8  
Australia      
Segment Reporting Information [Line Items]      
Net sales 403.8 380.9 391.7
Australia | Operating Segments      
Segment Reporting Information [Line Items]      
Total Identifiable Assets 334.6 398.8  
Germany      
Segment Reporting Information [Line Items]      
Net sales 140.5 137.8 165.0
Germany | Operating Segments      
Segment Reporting Information [Line Items]      
Total Identifiable Assets 502.7 490.9  
New Zealand      
Segment Reporting Information [Line Items]      
Net sales 87.7 88.1 115.9
New Zealand | Operating Segments      
Segment Reporting Information [Line Items]      
Total Identifiable Assets 29.5 41.2  
Other Countries      
Segment Reporting Information [Line Items]      
Net sales 412.9 382.7 $ 390.8
Other Countries | Operating Segments      
Segment Reporting Information [Line Items]      
Total Identifiable Assets $ 428.5 $ 369.0