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Investments - Narrative (Details) - USD ($) $ in Thousands | May 01, 2025 | Jun. 30, 2025 | Sep. 30, 2024
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Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |
Fair value of joint venture | $ 263,000 |  |
Equity-method investments | 213 | $ 213,000 | $ 349
Preferred equity investment | 50,000 | $ 50,000 | $ 0
Sale of SGK Business | SGK Brand Solutions |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |
Sale of SGK Business | $ 50,000 |  |
Propelis |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |
Equity ownership percentage (as percent) | 40.00% |  |

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