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Cash and Cash Equivalents, and Investments and Fair Value Measurements - Schedule of Investments (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Schedule Of Available For Sale Securities [Line Items] |  |
Adjusted Cost | $ 534,248 |
Fair Value | 534,511 |
Cash and cash equivalents: |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Adjusted Cost | 135,757 | $ 473,677
Unrealized Gain | 0 | 0
Unrealized Loss | 0 | 0
Fair Value | 135,757 | 473,677
Cash and cash equivalents: | Cash |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Adjusted Cost | 45,050 | 33,532
Unrealized Gain | 0 | 0
Unrealized Loss | 0 | 0
Fair Value | 45,050 | 33,532
Cash and cash equivalents: | Money market funds | Level 1 |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Adjusted Cost | 90,707 | 440,145
Unrealized Gain | 0 | 0
Unrealized Loss | 0 | 0
Fair Value | 90,707 | 440,145
Short-term investments: |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Adjusted Cost | 194,787 | 588,474
Unrealized Gain | 0 | 0
Unrealized Loss | (530) | (4,501)
Fair Value | 194,257 | 583,973
Short-term investments: | Corporate debt securities | Level 2 |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Adjusted Cost | 69,548 | 491,459
Unrealized Gain | 0 | 0
Unrealized Loss | (170) | (4,130)
Fair Value | 69,378 | 487,329
Short-term investments: | U.S. treasury securities |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Adjusted Cost |  | 85,271
Unrealized Gain |  | 0
Unrealized Loss |  | (342)
Fair Value |  | 84,929
Short-term investments: | U.S. treasury securities | Level 1 |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Adjusted Cost | 25,734 |
Unrealized Gain | 0 |
Unrealized Loss | (114) |
Fair Value | 25,620 |
Short-term investments: | Agency bonds | Level 1 |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Adjusted Cost | 99,505 |
Unrealized Gain | 0 |
Unrealized Loss | (246) |
Fair Value | 99,259 |
Short-term investments: | Commercial paper | Level 2 |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Adjusted Cost |  | 11,744
Unrealized Gain |  | 0
Unrealized Loss |  | (29)
Fair Value |  | 11,715
Long-term investments: |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Adjusted Cost | 248,754 | 217,003
Unrealized Gain | 1,063 | 280
Unrealized Loss | (270) | (1,050)
Fair Value | 249,547 | 216,233
Long-term investments: | Corporate debt securities | Level 2 |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Adjusted Cost | 191,467 | 125,735
Unrealized Gain | 898 | 158
Unrealized Loss | (213) | (909)
Fair Value | 192,152 | 124,984
Long-term investments: | U.S. treasury securities | Level 1 |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Adjusted Cost | 57,287 | 30,633
Unrealized Gain | 165 | 122
Unrealized Loss | (57) | 0
Fair Value | $ 57,395 | 30,755
Long-term investments: | Agency bonds | Level 2 |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Adjusted Cost |  | 60,635
Unrealized Gain |  | 0
Unrealized Loss |  | (141)
Fair Value |  | $ 60,494

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