Annual report pursuant to Section 13 and 15(d)

Income Taxes - Components of Changes in Unrecognized Tax Benefits (Detail)

v3.20.4
Income Taxes - Components of Changes in Unrecognized Tax Benefits (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 26, 2020
Dec. 28, 2019
Dec. 29, 2018
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Unrecognized tax benefits - beginning balance $ 1,101 $ 1,101 $ 1,101
Gross increases - tax positions in current period 0 0 0
Gross increases - tax positions in prior period 0 0 0
Gross decreases - tax positions in prior period 0 0 0
Unrecognized tax benefits - ending balance 1,101 1,101 1,101
Amount of unrecognized tax benefit that, if recognized would affect the Company's effective tax rate $ 1,101 $ 1,101 $ 1,101