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Note 6 - Goodwill and Intangible Assets, Net - Other Intangible Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Mar. 31, 2024
Gross carrying amount $ 246,628 $ 251,072
Accumulated amortization (148,447) (137,320)
Net carrying amount 98,181 113,752
Customer Relationships [Member]    
Gross carrying amount 186,272 189,911
Accumulated amortization (112,475) (104,528)
Net carrying amount 73,797 85,383
Other Intangible Assets [Member]    
Gross carrying amount 60,356 61,161
Accumulated amortization (35,972) (32,792)
Net carrying amount $ 24,384 $ 28,369