MARKETABLE INVESTMENT SECURITIES, RESTRICTED CASH AND CASH EQUIVALENTS, AND OTHER INVESTMENTS - Schedule of fair value measurements (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Cash and cash equivalents (including restricted):
Cash equivalents (including restricted)	$ 157,097	$ 205,813
Available-for-sale debt securities:
Total marketable investment securities	19,467
Cash And Restricted Cash
Cash and cash equivalents (including restricted):
Cash equivalents (including restricted)	89,539	115,409
Cash Equivalents And Restricted Cash Equivalents
Cash and cash equivalents (including restricted):
Cash equivalents (including restricted)	67,558	90,404
Corporate bonds
Available-for-sale debt securities:
Total available-for-sale debt securities	15,501
Commercial paper
Available-for-sale debt securities:
Total available-for-sale debt securities	3,787
Other debt securities
Available-for-sale debt securities:
Total available-for-sale debt securities	179
Level 1
Cash and cash equivalents (including restricted):
Cash equivalents (including restricted)	99,911	117,228
Level 1 \| Cash And Restricted Cash
Cash and cash equivalents (including restricted):
Cash equivalents (including restricted)	89,539	115,409
Level 1 \| Cash Equivalents And Restricted Cash Equivalents
Cash and cash equivalents (including restricted):
Cash equivalents (including restricted)	10,372	1,819
Level 2
Cash and cash equivalents (including restricted):
Cash equivalents (including restricted)	57,186	88,585
Available-for-sale debt securities:
Total marketable investment securities	19,467
Level 2 \| Cash Equivalents And Restricted Cash Equivalents
Cash and cash equivalents (including restricted):
Cash equivalents (including restricted)	57,186	$ 88,585
Level 2 \| Corporate bonds
Available-for-sale debt securities:
Total available-for-sale debt securities	15,501
Level 2 \| Commercial paper
Available-for-sale debt securities:
Total available-for-sale debt securities	3,787
Level 2 \| Other debt securities
Available-for-sale debt securities:
Total available-for-sale debt securities	$ 179

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Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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