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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

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