v3.26.1
Supplementary Balance Sheet Information
 6 Months Ended
Mar. 31, 2026
Balance Sheet Related Disclosures [Abstract]  
Supplementary Balance Sheet Information Supplementary Balance Sheet Information
Allowance for Expected Credit Losses
The allowance for expected credit losses for the six months ended March 31, 2026 and 2025 is as follows (in thousands):
Six Months Ended March 31,
20262025
Balance at beginning of period$4,649 $5,349 
Provisions1,980 1,921 
Payments received(2,072)(1,347)
Write-offs and adjustments(76)(299)
Balance at end of period$4,481 $5,624 
Inventories
The following is a summary of inventories at March 31, 2026 and September 30, 2025 (in thousands):
March 31,
2026		September 30,
2025
Raw materials and purchased parts$37,406 $33,319 
Work-in-process4,942 5,050 
Finished goods36,162 36,587 
Total inventories$78,510 $74,956 
Inventory reserves were $7.7 million and $5.9 million, respectively, at March 31, 2026 and September 30, 2025.
Warranty and Retrofit Costs
The following is a summary of product and warranty retrofit activity for the six months ended March 31, 2026 and 2025 (in thousands):
Six Months Ended March 31,
20262025
Balance at beginning of period$4,713 $5,213 
Accruals for warranties during the period400 698 
Costs incurred during the period(956)(674)
Balance at end of period$4,157 $5,237