CASH, CASH EQUIVALENTS AND INVESTMENTS - Schedule of Cash And Debt Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Debt Securities, Available-for-Sale [Line Items]
Cash	$ 771,683	$ 969,628
Money market funds	233,904	129,674
Certificates of deposit	309,162	157,243
Total	1,413,786	1,256,594
U.S. treasuries and government agency bonds
Debt Securities, Available-for-Sale [Line Items]
Debt securities	99,012	0
Auction-rate securities backed by student-loan notes
Debt Securities, Available-for-Sale [Line Items]
Debt securities	$ 25	$ 49