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v3.19.3.a.u2

Accrued Expenses and Other Liabilities | 12 Months Ended
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Dec. 31, 2019
Payables and Accruals [Abstract] |
Accrued Expenses and Other Liabilities | Accrued Expenses and Other Liabilities Accrued expenses and other liabilities consisted of the following (in thousands):
|  | December 31,
|  | 2019 |  | 2018
Compensation and benefits |  | $ | 6,568 |  |  | $ | 3,296 |
Research and development costs |  | 10,449 |  |  | 9,362 |
UCLB milestone |  | 663 |  |  | 638 |
Professional fees |  | 2,611 |  |  | 4,130 |
Deferred rent |  | 0 |  |  | 561 |
Corporate tax |  | 391 |  |  | 620 |
Other liabilities |  | 716 |  |  | 447 |
Total accrued expenses and other liabilities |  | $ | 21,398 |  |  | $ | 19,054 |
Other liabilities primarily consist of the current portion lease incentive liability, together amounts of $0.3 million and $0.4 million are recorded as of December 31, 2019 and 2018, respectively.

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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 http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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