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Leases - Other Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 24, 2020 | Sep. 30, 2021 | Sep. 24, 2020
Cash paid for amounts included in the measurement of lease liabilities: |  |  |  |
Financing cash flows from finance leases | $ 736 | $ 584 | $ 2,065 | $ 1,389
Operating cash flows from finance leases | 234 | 263 | 724 | 794
Operating cash flows from operating leases | 8,253 | 4,963 | 23,545 | 11,376
Right of use assets obtained in exchange for new lease obligations: |  |  |  |
Finance lease liabilities |  | 1,200 |  | 1,364
Operating lease liabilities | $ 287 | $ 14 | $ 1,862 | $ 9,644

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