Customer Lists and Other Identifiable Intangible Assets, Net - Other Identifiable Intangible Assets (Detail) - Customer Lists and Other Identifiable Intangible Assets [Member] - USD ($) $ in Thousands |
Dec. 30, 2018 |
Dec. 31, 2017 |
Jan. 01, 2017 |
---|---|---|---|
Finite Lived Intangible Assets [Line Items] | |||
Other identifiable intangible assets, cost | $ 25,288 | $ 25,288 | |
Less: Accumulated amortization | 8,806 | 6,968 | |
Total other identifiable intangible assets, net | $ 16,482 | $ 18,320 | $ 10,427 |