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Capital Stock - Additional Information (Detail)
Sep. 30, 2025
shares
Common Class A  
Class of Stock [Line Items]  
Common stock shares issued (in shares) 116,460,674
Common stock shares outstanding (in shares) 116,460,674
Common Class B  
Class of Stock [Line Items]  
Common stock shares issued (in shares) 10,078,872
Common stock shares outstanding (in shares) 10,078,872