v3.26.1
Schedule II - Consolidated Valuation and Qualifying Accounts
 12 Months Ended
Mar. 31, 2026
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule II - Consolidated Valuation and Qualifying Accounts
SCHEDULE II
ADVANCED DRAINAGE SYSTEMS, INC. AND SUBSIDIARIES
Consolidated Valuation and Qualifying Accounts for the Fiscal Years Ended March 31, 2026, 2025 and 2024 (in thousands):
Allowance for Credit Losses:
Fiscal Year ended March 31,
 
Balance at
beginning
of period
 
Charged to
costs and
expenses(1)
 
Charged to
other
accounts(2)
 Deductions  
Balance at
end of
period
2026 $7,684 $(141)$1 $(2,890)$4,654 
2025 4,849 3,654 (3)(816)7,684 
2024 8,227 (1,816)(4)(1,558)4,849 
(1)Amount for the year ended March 31, 2026 and 2025 includes $0.1 million and $0.8 million due to the acquisition of NDS and Orenco, respectively.
(2)Amounts represent the impact of foreign currency translation.