v3.26.1
Subsequent events - Additional Information (Detail)
$ in Millions, ¥ in Billions
May 29, 2026
shares
May 08, 2026
JPY (¥)
shares
May 31, 2026
USD ($)
Shares Repurchased [Member]      
Disclosure of non-adjusting events after reporting period [line items]      
Number of shares for repurchase | shares   230,000,000  
Total purchase price for repurchase | ¥   ¥ 500  
Period of repurchase start date   May 11, 2026  
Period of repurchase end date   May 10, 2027  
Share Cancellation [Member]      
Disclosure of non-adjusting events after reporting period [line items]      
Number of shares cancelled | shares 184,494,319    
Stock cancellation date May 29, 2026    
Asset Purchase [Member]      
Disclosure of non-adjusting events after reporting period [line items]      
Percentage of voting equity interests acquired     100.00%
Cash transferred     $ 1,600.0
Long Term Debt Recognised As Of Acquisition Date     1,900.0
Non-controlling interest as of acquisition     400.0
Content assets recognised as of acquisition     $ 3.4