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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands | 12 Months Ended
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Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2023
SGK Brand Solutions | Discontinued Operations, Disposed of by Sale |  |  |
Valuation and qualifying accounts [Roll Forward] |  |  |
Other Additions (Deductions) |  |  | $ 582
Deferred Tax Assets, Net Operating Loss |  |  |
Valuation and qualifying accounts [Roll Forward] |  |  |
Valuation allowance, increase (decrease) | $ 9,955 | $ 26,184 |
Deferred Tax Assets, Net Divestiture Of Business |  |  |
Valuation and qualifying accounts [Roll Forward] |  |  |
Valuation allowance, increase (decrease) | 11,840 |  |
Deferred Tax Assets, Additions to Foreign Exchange |  |  |
Valuation and qualifying accounts [Roll Forward] |  |  |
Valuation allowance, increase (decrease) |  | 1,606 |
Allowance for Credit Losses: |  |  |
Valuation and qualifying accounts [Roll Forward] |  |  |
Balance at Beginning of Period | 12,055 | 10,784 | 10,138
Charged to Expense | 5,151 | 2,696 | 1,625
Charged to other Accounts | 0 | 0 | 0
Other Additions (Deductions) | (3,725) | (1,425) | (979)
Balance at End of Period | 13,481 | 12,055 | 10,784
Deferred Tax Asset Valuation Allowance: |  |  |
Valuation and qualifying accounts [Roll Forward] |  |  |
Balance at Beginning of Period | 45,462 | 22,506 | 27,552
Charged to Expense | 18,944 | 24,152 | (4,709)
Charged to other Accounts | 0 | 0 | 0
Other Additions (Deductions) | 2,226 | (1,196) | (337)
Balance at End of Period | 66,632 | 45,462 | $ 22,506
Valuation allowance, increase (decrease) | $ 2,852 | 2,032 |
Deferred Tax Asset Valuation Allowance: | Deferred Tax Assets, Held For Sale Asset Write-Downs |  |  |
Valuation and qualifying accounts [Roll Forward] |  |  |
Valuation allowance, increase (decrease) |  | $ 2,802 |

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- Definition SEC Schedule, 12-09, Valuation Allowances and Reserves, (Deduction) Addition + References No definition available. + Details
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