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Deferred Costs and Other Contract Assets | 9 Months Ended
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Sep. 26, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |
Deferred Costs and Other Contract Assets | 7. Deferred Costs and Other Contract Assets Deferred costs and other contract assets consist of the following (in thousands):
| September 26, 2020 |  | December 28, 2019
Prepaid contract allowances | $ | 7,757 |  |  | $ | 8,098 |
Deferred commissions | 6,392 |  |  | 5,260 |
Unbilled contract receivables, non-current | 3,753 |  |  | 2,482 |
Equipment leased to customers | 664 |  |  | 374 |
Deferred costs and other contract assets | $ | 18,566 |  |  | $ | 16,214 |

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