v3.26.1
MARKETABLE DEBT SECURITIES - Schedule of Marketable Debt Securities (Detail) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost $ 1,603,756 $ 1,271,511
Gross Unrealized Gains 354 3,448
Gross Unrealized Losses (4,281) (88)
Fair Value 1,599,829 1,274,871
U.S. treasury securities    
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 810,231 670,566
Gross Unrealized Gains 163 1,736
Gross Unrealized Losses (2,356) (9)
Fair Value 808,038 672,293
Corporate notes    
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 438,660 332,104
Gross Unrealized Gains 161 1,152
Gross Unrealized Losses (874) (15)
Fair Value 437,947 333,241
U.S. government-sponsored enterprise securities    
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 340,633 254,829
Gross Unrealized Gains 30 559
Gross Unrealized Losses (1,040) (64)
Fair Value 339,623 255,324
Commercial paper    
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 14,232 9,012
Gross Unrealized Gains 0 0
Gross Unrealized Losses (11) 0
Fair Value $ 14,221 9,012
Municipal securities    
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost   5,000
Gross Unrealized Gains   1
Gross Unrealized Losses   0
Fair Value   $ 5,001