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Commitments and Contingencies (Tables) | 6 Months Ended
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Jun. 30, 2021
Commitments And Contingencies Disclosure [Abstract] |
Summary of Operating Lease Expense | Our lease expense comprises of the following (in thousands):
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Operating lease expense |  | $ | 1,570 |  |  | $ | 1,561 |  |  | $ | 3,130 |  |  | $ | 3,153 |
Summary of Balance Sheet Classification of Operating Lease Liabilities | The balance sheet classification of our operating lease liabilities was as follows (in thousands):
|  | June 30, 2021 |  |  | December 31, 2020 |
Operating lease liabilities: |  |  |  |  |  |  |  |
Current portion of lease liabilities (included in other current liabilities) |  | $ | 3,489 |  |  | $ | 3,247 |
Long-term portion of lease liabilities |  |  | 32,897 |  |  |  | 34,789 |
Total operating lease liabilities |  | $ | 36,386 |  |  | $ | 38,036 |
Summary of Maturities of Sublease Income and Operating Lease Liabilities | At June 30, 2021, the maturities of our sublease income and operating lease liabilities were as follows (in thousands):
Years ending December 31, |  | Sublease Income |  |  | Operating Lease Liabilities |
2021 (remaining) |  | $ | 2,630 |  |  | $ | 3,486 |
2022 |  |  | 5,357 |  |  |  | 6,248 |
2023 |  |  | 5,518 |  |  |  | 5,384 |
2024 |  |  | 5,684 |  |  |  | 5,528 |
2025 |  |  | 5,854 |  |  |  | 5,677 |
Thereafter |  |  | 33,742 |  |  |  | 30,721 |
Total |  | $ | 58,785 |  |  |  | 57,044 |
Less: |  |  |  |  |  |  |  |
Present value adjustment |  |  |  |  |  |  | (20,658 | )
Total |  |  |  |  |  | $ | 36,386 |
Summary of Weighted Average Remaining Lease Term and Weighted Average Discount Rate | The weighted average remaining lease term and the weighted average discount rate used to determine the operating lease liability were as follows:
|  | June 30, 2021 |  |  | December 31, 2020 |
Weighted average remaining lease term |  | 8.8 years |  |  | 9.1 years |
Weighted average discount rate |  |  | 10.1 | % |  |  | 10.1 | %

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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 the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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