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Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($)
Mar. 31, 2026
Sep. 27, 2025
Financial assets at fair value:    
Total financial assets at fair value $ 154,006,000 $ 0
Warrant liability 0 $ 0
Money Market Funds    
Financial assets at fair value:    
Cash and cash equivalents 154,006,000  
Fair Value, Inputs, Level 1    
Financial assets at fair value:    
Total financial assets at fair value 154,006,000  
Fair Value, Inputs, Level 1 | Money Market Funds    
Financial assets at fair value:    
Cash and cash equivalents 154,006,000  
Fair Value, Inputs, Level 2    
Financial assets at fair value:    
Total financial assets at fair value 0  
Fair Value, Inputs, Level 2 | Money Market Funds    
Financial assets at fair value:    
Cash and cash equivalents 0  
Fair Value, Inputs, Level 3    
Financial assets at fair value:    
Total financial assets at fair value 0  
Fair Value, Inputs, Level 3 | Money Market Funds    
Financial assets at fair value:    
Cash and cash equivalents $ 0