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Stock-Based Compensation - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jan. 01, 2024 | Jun. 30, 2024 | Dec. 31, 2023
Shares Available for Grant |  |  |
Beginning number of shares, available for grant (in shares) | 12,003,394 | 12,003,394 |
2018 Plan annual increase (in shares) | 3,689,000 | 3,689,000 |
Restricted stock units adjusted for performance adjustment (in shares) |  | (48,234) |
Ending number of shares, available for grant (in shares) |  | 15,543,680 | 12,003,394
Shares Subject to Options Outstanding |  |  |
Beginning number of shares, outstanding (in shares) | 4,012,903 | 4,012,903 |
Granted (in shares) |  | 427,767 |
Exercised (in shares) |  | (577,352) |
Canceled (in shares) |  | (112,592) |
Ending number of shares, outstanding (in shares) |  | 3,750,726 | 4,012,903
Options vested and exercisable, number of options (in shares) |  | 2,087,390 |
Weighted-Average Exercise Price |  |  |
Beginning balance of options outstanding (in usd per share) | $ 31.76 | $ 31.76 |
Granted (in usd per share) |  | 23.23 |
Exercised (in usd per share) |  | 4.46 |
Canceled (in usd per share) |  | 45.93 |
Ending balance of options outstanding (in usd per share) |  | 34.56 | $ 31.76
Options vested and exercisable, weighted average exercise price per share (in usd per share) |  | $ 34.05 |
Weighted-Average Remaining Contractual Life and Aggregate Intrinsic Value |  |  |
Options outstanding, weighted average remaining contractual term (in years) |  | 6 years 10 months 24 days | 6 years 7 months 6 days
Options vested and exercisable, weighted average remaining contractual term (in years) |  | 5 years 3 months 18 days |
Options outstanding, aggregate intrinsic value |  | $ 31,292 | $ 39,115
Options vested and exercisable, aggregate intrinsic value |  | $ 26,747 |
2018 plan annual increase (in shares) | 3,689,000 | 3,689,000 |
Equity Option |  |  |
Shares Available for Grant |  |  |
Granted (in shares) |  | (427,767) |
Canceled (in shares) |  | 112,592 |
Restricted Stock Units |  |  |
Shares Available for Grant |  |  |
Granted (in shares) |  | (1,699,265) |
Canceled (in shares) |  | 486,612 |
Shares underlying unvested performance-based restricted stock units |  |  |
Shares Available for Grant |  |  |
Granted (in shares) |  | (870,268) |
Canceled (in shares) |  | 36,852 |
MSUs |  |  |
Shares Available for Grant |  |  |
Canceled (in shares) |  | 2,260,764 |

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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(03) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Number of fully vested and expected to vest exercisable options that may be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(02) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(03) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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