Acquisitions - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Mar. 31, 2025	Mar. 31, 2024
Business Acquisition [Line Items]
Goodwill	$ 469,894	$ 392,569
Western Pennsylvania Acquisition [Member] | Level 3 Inputs [Member]
Business Acquisition [Line Items]
Accounts Receivable	1,443
Inventories	3,354
Prepaid and Other Current Assets	229
Property, Plant, and Equipment	35,097
Intangible Assets	39,400
Accounts Payable and Accrued Liabilities	(327)
Other Long-term Liabilities	(792)
Total Net Assets Acquired	78,404
Goodwill	71,565
Total Purchase Price	149,969
Northern Kentucky Acquisition [Member]
Business Acquisition [Line Items]
Inventories	1,067
Property, Plant, and Equipment	18,237
Lease Right-of-Use Assets	757
Intangible Assets	1,309
Accrued Liabilities	(71)
Lease Obligations	(757)
Other Long-term Liabilities	(1,422)
Total Net Assets Acquired	19,120
Goodwill	5,761
Total Purchase Price	$ 24,881