EQUITY AND LONG-TERM INVESTMENTS AND FAIR VALUE MEASUREMENTS - Available-for-Sale Securities (Details) - USD ($) $ in Thousands		Dec. 31, 2022	Dec. 31, 2021
Available-for-Sale Securities
Amortized Cost		$ 263,469	$ 145,132
Gross Unrealized Gains		0	0
Gross Unrealized Losses		0	0
Estimated Fair Value		263,469	145,132
Credit loss		0
Money market funds
Available-for-Sale Securities
Amortized Cost	[1]	263,469	145,132
Gross Unrealized Gains	[1]	0	0
Gross Unrealized Losses	[1]	0	0
Estimated Fair Value	[1]	$ 263,469	$ 145,132

[1] Money market funds are included in cash and cash equivalents on the consolidated balance sheets.