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Acquisitions and Divestitures - Narrative (Details) - USD ($) $ in Thousands |  | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | ---
Jan. 07, 2025 | Mar. 31, 2025 | Jan. 31, 2025 | Oct. 31, 2024 | Jan. 31, 2024 | Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2025 | Mar. 31, 2024
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from divestiture |  | $ 2,049 |  |  |  |  |  | $ 2,049 | $ 0
Gain on disposition |  | $ 2,072 |  |  |  |  |  | (2,072) | 0
Equity ownership percentage (as percent) | 40.00% |  |  |  |  |  |  |  |
Payment to acquire business, net of cash acquired |  |  |  |  |  |  |  | 2,218 | 5,825
Memorialization |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Payment to acquire business, net of cash acquired |  |  | $ 57,000 | $ 2,218 | $ 5,825 |  |  |  |
SGK Brand Solutions |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Income before income taxes, held-for-sale |  |  |  |  |  | $ 3,351 | $ 5,875 | $ 8,170 | $ 8,791
Disposal Group, Disposed of by Sale, Not Discontinued Operations | SGK Brand Solutions |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from divestiture of businesses | $ 250,000 |  |  |  |  |  |  |  |
Preferred equity consideration for disposal | $ 50,000 |  |  |  |  |  |  |  |

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