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Accrued Expenses | 3 Months Ended
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Mar. 31, 2023
Accrued Expenses [Abstract] |
Accrued Expenses | 6. Accrued Expenses Accrued expenses as of March 31, 2023 and December 31, 2022 are comprised of the following (in thousands):
|  | March 31, 2023 |  |  | December 31, 2022 |
Payroll, benefits and related taxes, excluding severance benefits |  | $ | 14,475 |  |  | $ | 7,620 |
Withholding tax attributable to intercompany interest income |  |  | 473 |  |  |  | 43 |
Outside service fees |  |  | 1,625 |  |  |  | 1,642 |
Others |  |  | 552 |  |  |  | 383 |
Accrued expenses |  | $ | 17,125 |  |  | $ | 9,688 |
Payroll, benefits and related taxes payable as of March 31, 2023 in the table above includes termination related charges under the voluntary resignation program (the “Program”) of $8,449 thousand, which are expected to be paid in the second quarter of 2023. See “Note 10. Early Termination Charges” for more information regarding the Program.

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- Definition The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a),20,24) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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