Note 6 - Goodwill and Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Gross carrying amount	$ 328,990	$ 335,400
Accumulated amortization	(112,175)	(85,283)
Net carrying amount	$ 216,815	250,117
Minimum [Member]
useful life (Year)	5 years
Maximum [Member]
useful life (Year)	15 years
Customer Relationships [Member]
Gross carrying amount	$ 238,247	244,157
Accumulated amortization	(86,058)	(67,469)
Net carrying amount	$ 152,189	176,688
Intangible assets, life (Year)	8 years 9 months 18 days
Customer Relationships [Member] \| Minimum [Member]
useful life (Year)	10 years
Customer Relationships [Member] \| Maximum [Member]
useful life (Year)	14 years
Intellectual Property [Member]
Gross carrying amount	$ 65,950	65,893
Accumulated amortization	(19,550)	(12,620)
Net carrying amount	$ 46,400	53,273
Intangible assets, life (Year)	6 years 6 months
Intellectual Property [Member] \| Minimum [Member]
useful life (Year)	8 years
Intellectual Property [Member] \| Maximum [Member]
useful life (Year)	14 years
Other Intangible Assets [Member]
Gross carrying amount	$ 24,793	25,350
Accumulated amortization	(6,567)	(5,194)
Net carrying amount	$ 18,226	$ 20,156
Other Intangibles [Member]
Intangible assets, life (Year)	10 years 4 months 24 days
Other Intangibles [Member] \| Minimum [Member]
useful life (Year)	3 years
Other Intangibles [Member] \| Maximum [Member]
useful life (Year)	12 years

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482665/350-30-50-1

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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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
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-Section 50
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- Definition

Amount before 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 928
-SubTopic 340
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483147/928-340-50-1

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Amount after 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 926
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483154/926-20-50-5

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