CONSOLIDATED STATEMENTS OF CASH FLOWS (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 363,599	$ 268,065	$ 258,390
Restricted cash (included in other current assets)	3,219	52,464	1,117
Total cash, cash equivalents and restricted cash	$ 366,818	$ 320,529	$ 259,507