Quarterly report [Sections 13 or 15(d)]

Investments - Narrative (Details)

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Investments - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
May 01, 2025
Mar. 31, 2026
Mar. 31, 2026
Sep. 30, 2025
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 $ 202,552 $ 202,552 $ 214,133
Preferred equity investment 50,000 51,594 51,594 $ 52,086
Paid-in-kind interest income   1,258 2,508  
Propelis        
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]        
Loss from equity method investment   9,283 11,581  
Equity method loss   8,092 9,198  
Equity method expense   $ 1,191 $ 2,383  
Divestitures | Brand Solutions        
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]        
Divestitures $ 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%