MARKETABLE INVESTMENT SECURITIES - Narrative (Details) - USD ($)	Mar. 31, 2023	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Debt securities with contractual maturities of one year or less	$ 573,800,000
Debt securities with contractual maturities exceeding one year	83,200,000
Fair value of marketable securities
Marketable investment securities	755,169,000	$ 973,915,000
Fair Value, Inputs, Level 3
Fair value of marketable securities
Marketable investment securities	$ 0	$ 0