v3.26.1
Fair Value Measurements - Schedule of Assets and Liabilities Measured on Recurring Basis (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Sep. 30, 2025
Assets:    
Cash equivalents $ 125,187 $ 149,790
Available-for-sale securities 324,315 262,722
Investment in equity securities 2,100 2,100
Foreign exchange contracts 165 21
Total assets 451,767 414,633
Liabilities:    
Net investment hedge 29,615 33,420
Contingent consideration 2,483  
Foreign exchange contracts 18 120
Total liabilities 32,116 33,540
Level 1    
Assets:    
Cash equivalents 124,260 148,539
Available-for-sale securities 91,754 8,027
Investment in equity securities 0 0
Foreign exchange contracts 0 0
Total assets 216,014 156,566
Liabilities:    
Net investment hedge 0 0
Contingent consideration 0  
Foreign exchange contracts 0 0
Total liabilities 0 0
Level 2    
Assets:    
Cash equivalents 927 1,251
Available-for-sale securities 232,561 254,695
Investment in equity securities 0 0
Foreign exchange contracts 165 21
Total assets 233,653 255,967
Liabilities:    
Net investment hedge 29,615 33,420
Contingent consideration 0  
Foreign exchange contracts 18 120
Total liabilities 29,633 33,540
Level 3    
Assets:    
Cash equivalents 0 0
Available-for-sale securities 0 0
Investment in equity securities 2,100 2,100
Foreign exchange contracts 0 0
Total assets 2,100 2,100
Liabilities:    
Net investment hedge 0 0
Contingent consideration 2,483  
Foreign exchange contracts 0 0
Total liabilities $ 2,483 $ 0