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GOODWILL AND INTANGIBLE ASSETS - Schedule of Intangible Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Mar. 31, 2025
Finite-Lived Intangible Assets [Line Items]    
Cost $ 1,096,729 $ 1,086,118
Accumulated Amortization (858,340) (827,428)
Net 238,389 258,690
Developed technology    
Finite-Lived Intangible Assets [Line Items]    
Cost 250,453 248,232
Accumulated Amortization (245,614) (242,298)
Net 4,839 5,934
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Cost 771,304 763,397
Accumulated Amortization (544,683) (518,995)
Net 226,621 244,402
Distributor relationships and technology licenses    
Finite-Lived Intangible Assets [Line Items]    
Cost 5,233 5,097
Accumulated Amortization (4,319) (4,022)
Net 914 1,075
Definite-lived trademark and trade name    
Finite-Lived Intangible Assets [Line Items]    
Cost 58,022 57,675
Accumulated Amortization (52,163) (50,562)
Net 5,859 7,113
Core technology    
Finite-Lived Intangible Assets [Line Items]    
Cost 7,192 7,192
Accumulated Amortization (7,192) (7,192)
Net 0 0
Capitalized software    
Finite-Lived Intangible Assets [Line Items]    
Cost 3,317 3,317
Accumulated Amortization (3,317) (3,317)
Net 0 0
Other    
Finite-Lived Intangible Assets [Line Items]    
Cost 1,208 1,208
Accumulated Amortization (1,052) (1,042)
Net $ 156 $ 166