v3.26.1
Acquisitions - Additional Information (Detail) - USD ($)
$ in Thousands
2 Months Ended 12 Months Ended
Apr. 29, 2022
Mar. 31, 2026
Mar. 31, 2026
Feb. 02, 2026
May 08, 2025
Mar. 31, 2025
Oct. 01, 2024
Mar. 31, 2024
Business Combination [Line Items]                
Goodwill   $ 1,042,716 $ 1,042,716     $ 720,223   $ 617,183
National Diversified Sales                
Business Combination [Line Items]                
Transaction costs related to Acquisition     40,300          
Goodwill       $ 317,677        
Payments to Acquire Businesses, Gross     984,900          
Cash and cash equivalents     3,200          
CashHeldForSaleFromAcquisition     9,200          
Business Combination, Acquiree's Revenue since Acquisition Date, Actual   48,800            
Business Combination, Acquiree's Earnings (Loss) since Acquisition Date, Actual   4,700            
LossFromDiscontinuedOperationsofAcquireeSinceAcquisitionDate   1,100            
Business Combination, Goodwill, Expected Tax Deductible, Amount       271,600        
Intangible assets       456,920        
Preliminary fair value       $ 456,920        
River Valley Pipe                
Business Combination [Line Items]                
Total fair value of consideration transferred     18,800          
Transaction costs related to Acquisition     500          
Goodwill   3,935 3,935   $ 4,964      
Intangible assets   2,970 2,970   2,970      
Preliminary fair value         $ 2,970      
Orenco Systems, Inc.                
Business Combination [Line Items]                
Total fair value of consideration transferred $ 236,300              
Transaction costs related to Acquisition     7,500          
Goodwill   104,231 104,231       $ 104,007  
Payments to Acquire Businesses, Gross     255,000          
Cash and cash equivalents     18,700          
Intangible assets   $ 148,000 $ 148,000       148,000  
Preliminary fair value             $ 148,000