v3.26.1
Fair Value Measurements - Schedule of Assets and Liabilities Measured on Recurring Basis (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Sep. 30, 2025
Assets:    
Cash equivalents $ 70,824 $ 149,790
Available-for-sale securities 332,230 262,722
Investment in equity securities 2,100 2,100
Foreign exchange contracts 28 21
Total assets 405,182 414,633
Liabilities:    
Net investment hedge 28,435 33,420
Contingent consideration 2,437  
Foreign exchange contracts 84 120
Total liabilities 30,956 33,540
Level 1    
Assets:    
Cash equivalents 70,824 148,539
Available-for-sale securities 75,491 8,027
Investment in equity securities 0 0
Foreign exchange contracts 0 0
Total assets 146,315 156,566
Liabilities:    
Net investment hedge 0 0
Contingent consideration 0  
Foreign exchange contracts 0 0
Total liabilities 0 0
Level 2    
Assets:    
Cash equivalents 0 1,251
Available-for-sale securities 256,739 254,695
Investment in equity securities 0 0
Foreign exchange contracts 28 21
Total assets 256,767 255,967
Liabilities:    
Net investment hedge 28,435 33,420
Contingent consideration 0  
Foreign exchange contracts 84 120
Total liabilities 28,519 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 2,437  
Foreign exchange contracts 0 0
Total liabilities $ 2,437 $ 0