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Leases (Tables) | 12 Months Ended
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Dec. 31, 2023
Leases [Abstract] |
Schedule of Supplemental Balance Sheet Information Related to Leases | Supplemental balance sheet information related to leases as of December 31, 2023 and 2022 was as follows (in thousands, except weighted-average remaining lease term and discount rate):
|  |  |  | December 31,
Lease Assets and Liabilities |  | Classification |  | 2023 |  | 2022
Assets: |  |  |  |  |  |
ROU assets, operating, net |  | Right of use asset, net |  | $ | 24,985 |  | $ | 36,384
ROU assets, finance, net |  | Right of use asset, net |  | 160,233 |  | 69,857
Total non-current ROU assets |  |  |  | $ | 185,218 |  | $ | 106,241
Liabilities: |  |  |  |  |  |
Current portion of operating lease liabilities |  | Other current liabilities |  | $ | 22,977 |  | $ | 16,867
Current portion of finance lease liabilities |  | Current portion of finance lease liabilities |  | 5,142 |  | 27,196
Total current lease liabilities |  |  |  | $ | 28,119 |  | $ | 44,063
Non-current portion of operating lease liabilities |  | Other non-current liabilities |  | $ | 28,577 |  | $ | 50,085
Non-current portion of finance lease liabilities |  | Non-current finance lease liabilities |  | 55,923 |  | 31,238
Total non-current lease liabilities |  |  |  | $ | 84,500 |  | $ | 81,323
Weighted-average remaining lease term (years): |  |  |  |  |  |
Operating leases |  |  |  | 3.9 |  | 4.6
Finance leases |  |  |  | 11.6 |  | 8.3
Weighted-average discount rate: |  |  |  |  |  |
Operating leases |  |  |  | 6.0% |  | 6.4%
Finance leases |  |  |  | 8.9% |  | 5.4%
Schedule of Operating Lease Expenses | Lease expense for the operating and short-term leases for the years ended December 31, 2023, 2022, and 2021 was as follows (in thousands):
| Year Ended December 31,
| 2023 |  | 2022 |  | 2021
Operating lease expense | $ | 6,929 |  |  | $ | 6,903 |  |  | $ | 37,027 |
Short-term lease expense (benefit(1)) | (48,009) |  |  | 94,726 |  |  | 468,210 |
Variable lease expense | 10,292 |  |  | 6,836 |  |  | 116,435 |
Finance lease expense: |  |  |  |  |
ROU assets expensed | $ | 12,876 |  |  | $ | 7,759 |  |  | $ | 112,528 |
Interest expense | 2,605 |  |  | 1,472 |  |  | 7,241 |
Total finance lease expense | $ | 15,481 |  |  | $ | 9,231 |  |  | $ | 119,769 |
(1) During the year ended December 31, 2023, the Company recognized a short-term lease benefit of $48.0 million due to gains on the settlement of manufacturing supply agreements with CMOs and CDMOs that included embedded leases.
Schedule of Supplemental Cash Flow Information of Leases | Supplemental cash flow information related to leases for the year ended December 31, 2023, 2022, and 2021 was as follows (in thousands):
| Year Ended December 31,
| 2023 |  | 2022 |  | 2021
Cash paid for amounts included in the measurement of lease liabilities: |  |  |  |  |
Operating cash flows used in operating leases | $ | 101,297 |  |  | $ | 190,158 |  |  | $ | 203,991 |
Operating cash flows used in finance leases | 2,605 |  |  | 1,472 |  |  | 7,241 |
Financing cash flows used in finance leases | 27,345 |  |  | 93,595 |  |  | 127,907 |
ROU assets obtained in exchange for operating lease obligations | $ | — |  |  | $ | 30,675 |  |  | $ | 66,682 |
ROU assets obtained in exchange for finance lease obligations | 103,299 |  |  | 73,240 |  |  | 112,528 |
Schedule of Maturities of Lease Liabilities | As of December 31, 2023, maturities of lease liabilities were as follows (in thousands):
Year | Amount
2024 | $ | 34,353 |
2025 | 17,192 |
2026 | 13,616 |
2027 | 14,000 |
2028 | 14,375 |
Thereafter | 67,296 |
Total minimum lease payments | 160,832 |
Less: imputed interest | 48,213 |
Total lease liabilities | $ | 112,619 |

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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 -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-4 + 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 -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-6 + Details
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