CONSOLIDATED FINANCIAL STATEMENT DETAILS - Cash and Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Cash and cash equivalents	$ 815,384	$ 739,164	$ 465,676	$ 186,947
Restricted cash included in other current assets	128	138	127	193
Cash, cash equivalents, and restricted cash included in current assets of discontinued operations	0	0	2,674,146	1,946,125
Restricted cash included in non-current assets of discontinued operations	0	0	409	420
Total cash, cash equivalents and restricted cash as shown on the consolidated statement of cash flow	$ 815,512	$ 739,302	$ 3,140,358	$ 2,133,685