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Leases (Tables) | 9 Months Ended
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Sep. 30, 2020
Leases [Abstract] |
Schedule of Description of Operating Lease | Operating leases consisted of the following:
Address |  | Type |  | Square Feet |  | Commencement Date |  | Expiration Date
12780 El Camino Real (1) |  | Office/Laboratory |  | 141,000 |  |  | August 7, 2019 |  | July 31, 2031
12790 El Camino Real, Suite 130 (1) |  | Office |  | 2,000 |  |  | December 1, 2019 |  | July 31, 2031
12790 El Camino Real, Suite 150 (1) |  | Office |  | 8,000 |  |  | August 7, 2019 |  | July 31, 2031
12790 El Camino Real, Suite 300 (1) |  | Office |  | 28,000 |  |  | December 1, 2019 |  | July 31, 2031
12777 High Bluff Drive |  | Office |  | 45,000 |  |  | July 1, 2018 |  | July 31, 2029
12790 El Camino Real, Suite 200 (1) |  | Office |  | 28,000 |  |  | February 1, 2021 |  | July 31, 2031
12790 El Camino Real, Suite 100 (1) |  | Office |  | 17,000 |  |  | February 1, 2021 |  | July 31, 2031
______________ (1) Under the terms of the 12780/12790 El Camino Real master lease, we have two options to extend the term of the lease for a period of ten years each. We were not reasonably certain to exercise either of these options at lease commencement. As such, neither option was recognized as part of the associated operating lease right-of-use asset or liability. Note: In connection with our operating leases, in lieu of cash security deposits, Wells Fargo Bank, N.A., issued letters of credit on our behalf, which are secured by deposits totaling $3.2 million.
Lessee, Operating Lease, Liability, Maturity | Approximate future minimum lease payments under operating leases were as follows:
(in millions) | September 30, 2020
Year ending December 31, 2020 (3 months remaining) | $ | 2.1 |
Year ending December 31, 2021 | 10.6 |
Year ending December 31, 2022 | 10.9 |
Year ending December 31, 2023 | 11.2 |
Year ending December 31, 2024 | 11.6 |
Thereafter | 79.7 |
Total operating lease payments | 126.1 |
Less accreted interest | 33.4 |
Total operating lease liabilities | 92.7 |
Less current operating lease liabilities | 9.7 |
Noncurrent operating lease liabilities | $ | 83.0 |
______________ Note: Amounts presented in the table above exclude $28.3 million of non-cancelable future minimum lease payments for operating leases that have not yet commenced.

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980 + Details
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