Acquisitions - Schedule of Fair Value Estimates of Identifiable Intangible Assets (Detail) $ in Thousands	12 Months Ended
Mar. 31, 2025 USD ($)
Western Pennsylvania Acquisition [Member]
Business Acquisition [Line Items]
Estimated Fair Value	$ 39,400
Western Pennsylvania Acquisition [Member] \| Customer Relationships [Member]
Business Acquisition [Line Items]
Weighted-Average Life	15 years
Estimated Fair Value	$ 38,900
Western Pennsylvania Acquisition [Member] \| Trade Name and Technology [Member]
Business Acquisition [Line Items]
Weighted-Average Life	5 years
Estimated Fair Value	$ 500
Northern Kentucky Acquisition [Member]
Business Acquisition [Line Items]
Weighted-Average Life	15 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://www.xbrl.org/2003/role/disclosureRef
-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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 985
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481283/985-20-50-2

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-5

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- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
-Paragraph 37
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479303/805-10-55-37

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-Topic 805
-SubTopic 20
-Section 50
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-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-1

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