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Goodwill and Intangible Assets - Schedule of Intangible Assets, Net (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Mar. 31, 2023
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |
Gross | $ 78,097 | $ 76,985
Accumulated Amortization | 26,128 | 24,607
Net Carrying Amount | 51,969 | 52,378
Patents |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross | 41,305 | 40,213
Accumulated Amortization | 19,200 | 18,335
Net Carrying Amount | $ 22,105 | $ 21,878
Weighted- Average Lives | 10 years | 10 years
Customer relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross | $ 3,307 | $ 3,281
Accumulated Amortization | 3,154 | 3,115
Net Carrying Amount | $ 153 | $ 166
Weighted- Average Lives | 3 years | 9 years
Process technology |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross | $ 28,508 | $ 28,508
Accumulated Amortization | 3,571 | 2,963
Net Carrying Amount | $ 24,937 | $ 25,545
Weighted- Average Lives | 10 years | 12 years
Indefinite-lived and legacy process technology |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross | $ 4,690 | $ 4,696
Accumulated Amortization | 0 | 0
Net Carrying Amount | 4,690 | 4,696
Trademarks and other |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross | 287 | 287
Accumulated Amortization | 203 | 194
Net Carrying Amount | $ 84 | $ 93
Weighted- Average Lives | 2 years | 5 years

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482686/350-30-45-1 + Details
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