CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS - Schedule of Cash and Cash Equivalents and Short-Term Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-Sale [Line Items]
Cash and cash equivalents	$ 156,978	$ 115,326
HTM Securities
Debt securities, held-to-maturity, adjusted cost basis and recorded basis	539,747	537,153
Unrealized gains	56	1,086
Unrealized losses	(861)	(1,139)
Fair market value	538,942	537,100
Debt securities, available-for-sale and held-to-maturity, adjusted cost basis	940,815	969,425
Debt securities, available-for-sale and held-to-maturity, unrealized gains	56	1,086
Debt securities, available-for-sale and held-to-maturity, unrealized losses	(861)	(1,139)
Debt securities, available-for-sale and held-to-maturity, fair value	940,010	969,372
Debt securities, available-for-sale and held-to-maturity	940,815	969,425
Level 1 | U.S. Treasury bills
HTM Securities
Debt securities, held-to-maturity, adjusted cost basis and recorded basis	140,031	188,030
Unrealized gains	12	8
Unrealized losses	(136)	(540)
Fair market value	139,907	187,498
Level 2 | Government and governmental agencies
HTM Securities
Debt securities, held-to-maturity, adjusted cost basis and recorded basis	25,282	44,357
Unrealized gains	1	12
Unrealized losses	(60)	(12)
Fair market value	25,223	44,357
Level 2 | Corporate debt securities
HTM Securities
Debt securities, held-to-maturity, adjusted cost basis and recorded basis	374,434	304,766
Unrealized gains	43	1,066
Unrealized losses	(665)	(587)
Fair market value	373,812	305,245
Cash and cash equivalents
HTM Securities
Debt securities, held-to-maturity, adjusted cost basis and recorded basis	0	0
Debt securities, available-for-sale and held-to-maturity	156,978	115,326
Cash and cash equivalents | Level 2 | Corporate debt securities
HTM Securities
Debt securities, held-to-maturity, adjusted cost basis and recorded basis	0	0
Short-term investments
HTM Securities
Debt securities, held-to-maturity, adjusted cost basis and recorded basis	539,747	537,153
Debt securities, available-for-sale and held-to-maturity	783,837	854,099
Short-term investments | Level 1 | U.S. Treasury bills
HTM Securities
Debt securities, held-to-maturity, adjusted cost basis and recorded basis	140,031	188,030
Short-term investments | Level 2 | Government and governmental agencies
HTM Securities
Debt securities, held-to-maturity, adjusted cost basis and recorded basis	25,282	44,357
Short-term investments | Level 2 | Corporate debt securities
HTM Securities
Debt securities, held-to-maturity, adjusted cost basis and recorded basis	374,434	304,766
Cash
Debt Securities, Available-for-Sale [Line Items]
Cash and cash equivalents, fair value	9,995	9,697
Cash | Cash and cash equivalents
Debt Securities, Available-for-Sale [Line Items]
Cash and cash equivalents	9,995	9,697
Money market funds | Level 1
Debt Securities, Available-for-Sale [Line Items]
Cash and cash equivalents, fair value	139,983	105,629
Money market funds | Cash and cash equivalents | Level 1
Debt Securities, Available-for-Sale [Line Items]
Cash and cash equivalents	139,983	105,629
Certificate of deposits and term deposits | Level 2
Debt Securities, Available-for-Sale [Line Items]
Cash and cash equivalents, fair value	251,090	316,946
Certificate of deposits and term deposits | Cash and cash equivalents | Level 2
Debt Securities, Available-for-Sale [Line Items]
Cash and cash equivalents	7,000	0
Certificate of deposits and term deposits | Short-term investments | Level 2
Debt Securities, Available-for-Sale [Line Items]
Cash and cash equivalents	$ 244,090	$ 316,946