v3.26.1
Investments - Summary of Available-for-Sale Investments (Detail) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Net Investment Income [Line Items]    
Estimated Fair Value $ 574,153 $ 0
Gross Unrealized Gains 11 0
Gross Unrealized Losses 0 0
Amortized cost 574,142 0
U.S. Treasuries - Cash equivalents [Member]    
Net Investment Income [Line Items]    
Estimated Fair Value 574,153 0
Gross Unrealized Gains 11 0
Gross Unrealized Losses 0 0
Amortized cost $ 574,142 $ 0