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Acquisitions and divestitures - Narrative (Details)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Sep. 12, 2022
USD ($)
Dec. 31, 2023
USD ($)
Sep. 30, 2023
USD ($)
Mar. 31, 2023
USD ($)
Sep. 30, 2022
USD ($)
Mar. 31, 2023
USD ($)
Mar. 31, 2024
USD ($)
Mar. 31, 2023
USD ($)
Sep. 12, 2022
£ / shares
Sep. 12, 2022
USD ($)
Business Acquisition [Line Items]                    
Proceeds from sale of businesses             $ 75,561 $ 471,720    
Filter Resources Business | Disposal Group, Disposed of by Sale, Not Discontinued Operations                    
Business Acquisition [Line Items]                    
Proceeds from sale of businesses   $ 37,000                
Pre-tax gain (loss) related to divestiture   $ 12,000                
MicroStrain Sensing Systems Business | Disposal Group, Disposed of by Sale, Not Discontinued Operations                    
Business Acquisition [Line Items]                    
Proceeds from sale of businesses     $ 37,000              
Pre-tax gain (loss) related to divestiture     $ 13,000              
French Aerospace Business | Disposal Group, Disposed of by Sale, Not Discontinued Operations                    
Business Acquisition [Line Items]                    
Proceeds from sale of businesses       $ 27,000            
Pre-tax gain (loss) related to divestiture       $ (12,000)            
Aircraft Wheel And Brake Business | Disposal Group, Disposed of by Sale, Not Discontinued Operations                    
Business Acquisition [Line Items]                    
Proceeds from sale of businesses         $ 443,000          
Pre-tax gain (loss) related to divestiture         $ 374,000          
Meggitt plc                    
Business Acquisition [Line Items]                    
Price per share of stock acquired (in pounds per share) | £ / shares                 £ 8  
Purchase price to acquire business $ 7,200,000                  
Aggregate annual sales for business, to be acquired, for their most recent fiscal year prior to acquisition $ 2,100,000                  
Acquisition-relate nonrecurring adjustments           $ (1,000)   $ 197,000    
Meggitt plc | Aerospace Systems                    
Business Acquisition [Line Items]                    
Percentage of revenue per segment                   82.00%
Meggitt plc | Diversified Industrial                    
Business Acquisition [Line Items]                    
Percentage of revenue per segment                   18.00%
Meggitt plc | Customer- Related Intangible Assets                    
Business Acquisition [Line Items]                    
Intangible assets acquired                   $ 4,200,000
Weighted average useful life of intangible assets 21 years                  
Meggitt plc | Technology                    
Business Acquisition [Line Items]                    
Intangible assets acquired                   1,100,000
Weighted average useful life of intangible assets 22 years                  
Meggitt plc | Trade names                    
Business Acquisition [Line Items]                    
Intangible assets acquired                   $ 303,000
Weighted average useful life of intangible assets 18 years