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Commitments and Contingencies | 9 Months Ended
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Sep. 30, 2020
Commitments And Contingencies Disclosure [Abstract] |
Commitments and Contingencies | 7. Commitments and Contingencies September 2020 Sublease Agreement On September 3, 2020, the Company entered into a sublease agreement (the “Sublease”) with Five Prime Therapeutics, Inc. (the “Sublessor”), for approximately 115,466 square feet, located in South San Francisco, California (the “Premises”). The Company expects to use the Premises as its new corporate headquarters and in which to conduct (or expand) research and development activities. The commencement date for the first 85,755 square feet of the Premises (“Initial Premises”) is expected to be mid-2021 at which time the Company will occupy the space and commence making monthly payments under the Sublease. The Company will be provided early access to the Sublease space commencing in the fourth quarter of 2020 to conduct certain planning and tenant improvement work, which the Company expects will result in it recording rent expense prior to space occupancy and making actual lease payments. The Sublease is subordinate to the lease agreement, effective December 12, 2016, between the Sublessor and HCP Oyster Point III LLC (the “Landlord”). The commencement date for the remaining 29,711 square feet of the Premises (the “Expansion Premises”) is expected to be 24 months following the commencement date on the Initial Premises, although the Company has the right to accelerate the commencement date on the Expansion Premises to an earlier date upon six months’ prior written notice to the Sublessor. The Sublease for both the Initial Premises and Expansion Premises will expire on December 31, 2027. Assuming a commencement date on the Initial Premises of April 1, 2021, the aggregate estimated base rent payments due over the term of the Sublease are approximately $47.7 million, excluding the approximately $5.2 million in potential financial benefit to the Company of base rent abatement to be provided by Sublessor for months 7 – 18 of the Sublease period, subject to certain terms contained in the Sublease. The Sublease contains customary provisions requiring the Company to pay its pro rata share of utilities and a portion of the operating expenses and certain taxes, assessments and fees of the Premises and provisions allowing the Sublessor to terminate the Sublease upon the termination of the lease with the Landlord or if the Company fails to remedy a breach of certain of its obligations within specified time periods. Additionally, the Company posted a security deposit in the form of a bank standby letter of credit, which is reflected as restricted cash in non-current assets on the Company’s balance sheet as of September 30, 2020. As of September 30, 2020, the Company’s future minimum payments (excluding potential financial benefit to the Company of base rent abatement, as noted above) under the noncancelable operating sublease are as follows:
Year Ending December 31, |  | Amount |  |
|  | (in thousands) |  |
2020 |  | $ | - |  |
2021 |  |  | 3,820 |  |
2022 |  |  | 5,228 |  |
2023 |  |  | 6,828 |  |
2024 |  |  | 7,540 |  |
Thereafter |  |  | 24,241 |  |
Total future minimum sublease payments |  | $ | 47,657 |  |

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- Definition The entire disclosure for commitments and contingencies. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -URI http://asc.fasb.org/topic&trid=2127136 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -URI http://asc.fasb.org/topic&trid=2144648 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121559207&loc=d3e25336-109308 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121559207&loc=d3e25336-109308 + Details
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