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Detail of Selected Balance Sheet Accounts (Tables)
12 Months Ended
Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of Components of Inventories
The components of inventories are summarized below (in thousands): 
 September 30,
 20242023
Raw materials, parts and sub-assemblies$92,314 $68,631 
Work-in-progress920 1,379 
Provision for excess and obsolete inventories(7,361)(6,145)
Total inventories$85,873 $63,865 
Schedule of Property, Plant and Equipment
Property, plant and equipment are summarized below (in thousands): 
 September 30,Range of
 20242023Asset Lives
Land$24,110 $21,526 
Buildings and improvements127,094 121,454 
3 – 39 Years
Machinery and equipment94,889 92,477 
3 – 15 Years
Furniture and fixtures2,885 3,726 
3 – 10 Years
Construction in process3,317 4,129 
 $252,295 $243,312  
Less: Accumulated depreciation(148,874)(145,687) 
Total property, plant and equipment, net$103,421 $97,625  
Schedule of Activity in Product Warranty Accrual
Activity in our product warranty accrual consisted of the following (in thousands): 
 September 30,
 20242023
Balance at beginning of period$3,305 $2,345 
Increase to warranty expense7,525 3,752 
Deduction for warranty charges(5,039)(2,800)
Change due to foreign currency translation31 
Balance at end of period$5,822 $3,305