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v3.25.3

Basic and Diluted Loss per Common Share - Additional Information (Detail) | 9 Months Ended
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Sep. 30, 2025 shares
Class of Stock [Line Items] |
Common stock, conversion ratio | Each share of class B common stock is convertible at any time, at the option of the holder, into one share of class A common stock.
Convertible, shares | 0.1
Class A |
Class of Stock [Line Items] |
Common stock, votes per share | one
Class B Convertible |
Class of Stock [Line Items] |
Common stock, votes per share | ten

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