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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Acquisitions - Additional Information (Detail) - USD ($) $ in Thousands			12 Months Ended
	Jan. 07, 2025	Aug. 09, 2024	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Business Acquisition [Line Items]
Purchase price of separate operating segment			$ 174,850	$ 55,053	$ 158,451
Depreciation			147,600	$ 139,500	$ 129,600
Western Pennsylvania Acquisition [Member]
Business Acquisition [Line Items]
Purchase price of separate operating segment	$ 150,000
Depreciation			1,700
Amortization			$ 1,900
Western Pennsylvania Acquisition [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Property, plant and equipment, estimated useful life			5 years
Western Pennsylvania Acquisition [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Property, plant and equipment, estimated useful life			30 years
Northern Kentucky Acquisition [Member]
Business Acquisition [Line Items]
Purchase price of separate operating segment		$ 24,900
Acquired intangible assets estimated useful life			15 years
Depreciation			$ 1,700
Amortization			$ 700
Northern Kentucky Acquisition [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Property, plant and equipment, estimated useful life			5 years
Northern Kentucky Acquisition [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Property, plant and equipment, estimated useful life			30 years