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Note 6 - Goodwill and Intangible Assets, Net - Other Intangible Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Mar. 31, 2023
Gross carrying amount $ 368,444 $ 328,990
Accumulated amortization (135,670) (112,175)
Net carrying amount 232,774 216,815
Customer Relationships [Member]    
Gross carrying amount 265,408 238,247
Accumulated amortization (102,518) (86,058)
Net carrying amount 162,890 152,189
Intellectual Property [Member]    
Gross carrying amount 71,169 65,950
Accumulated amortization (25,416) (19,550)
Net carrying amount 45,753 46,400
Other Intangible Assets [Member]    
Gross carrying amount 31,867 24,793
Accumulated amortization (7,736) (6,567)
Net carrying amount $ 24,131 $ 18,226