v3.25.1
Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 6 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Operating Activities:    
Net income $ 81,093 $ 57,573
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation 3,473 3,365
Stock-based compensation 2,544 2,863
Unrealized mark-to-market gain on derivative contracts (23) (30)
Bad debt (recovery) expense, net (130) 100
Deferred income taxes (1,271) (41)
Changes in operating assets and liabilities:    
Accounts receivable, net 9,963 22,812
Contract assets and liabilities, net (16,927) 21,338
Inventories (3,962) (18,137)
Income taxes (7,459) (1,555)
Prepaid expenses and other current assets 2,810 1,671
Accounts payable 257 22,879
Accrued liabilities (13,713) (11,453)
Other, net 2,825 (494)
Net cash provided by operating activities 59,480 100,891
Investing Activities:    
Purchases of short-term investments (22,614) (12,551)
Maturities of short-term investments 33,421 3,691
Purchases of property, plant and equipment (6,263) (2,138)
Purchase of intangible assets 0 (250)
Proceeds from sale of property, plant and equipment 20 0
Net cash provided by (used in) investing activities 4,564 (11,248)
Financing Activities:    
Shares withheld in lieu of employee tax withholding (11,995) (6,476)
Dividends paid (6,412) (6,299)
Net cash used in financing activities (18,407) (12,775)
Net increase in cash and cash equivalents 45,637 76,868
Effect of exchange rate changes on cash and cash equivalents (1,426) 513
Cash and cash equivalents at beginning of period 315,331 245,875
Cash and cash equivalents at end of period $ 359,542 $ 323,256