v3.26.1
Supplementary Balance Sheet Information (Tables)
 6 Months Ended
Mar. 31, 2026
Balance Sheet Related Disclosures [Abstract]  
Allowance for Credit Losses on Accounts Receivables
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 
Schedule of Inventory
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 
Schedule of 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