Quarterly report [Sections 13 or 15(d)]

Investments - Narrative (Details)

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Investments - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
May 01, 2025
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
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 $ 196,884   $ 196,884   $ 214,133
Preferred equity investment 50,000 27,513   27,513   $ 52,086
Loss from equity method investment     $ 0   $ 0  
Paid-in-kind interest income   919   3,427    
Propelis            
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]            
Preferred equity investment, redeemed   28,000   28,000    
Loss from equity method investment   5,668   17,249    
Equity method loss   4,476   13,674    
Equity method expense   $ 1,192   $ 3,575    
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%