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CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) Non-Cash Activities - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Other Significant Noncash Transactions [Line Items]    
Unrealized gain on available-for-sale securities $ 4,117 $ 3,304
Net change in accounts payable and accrued expenses related to purchases of property and equipment (5,573) 887
Cash paid for income taxes, net of refunds 60,772 81,132
Common Stock Issued to Board of Directors and Scientific Advisory Board that was Earned and Accrued for in Previous Period [Member]    
Other Significant Noncash Transactions [Line Items]    
Other significant noncash transaction, value of consideration received $ 300 $ 300