Related Party Transactions - Additional Information (Detail) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 29, 2018 |
Dec. 30, 2017 |
Dec. 31, 2016 |
|
| Related Party Transactions [Abstract] | |||
| Management fees to related party | $ 546 | $ 519 | $ 550 |
| Proceeds from sale of Holdco stock | 0 | (500) | (500) |
| Dividend to Holdco | $ 3,780 | $ 0 | $ 0 |