Share-Based Compensation and Employee Benefit Plans - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 26, 2020	Dec. 31, 2019	Dec. 31, 2018
Activity of Stock Option [Roll Forward]
Shares, Outstanding, Beginning balance (in shares)	47,000	37,000	59,000
Shares, Assumed in Merger (in shares)		12,000
Shares, Exercised (in shares)	(19,000)	(2,000)	(22,000)
Shares, Outstanding, Ending balance (in shares)	28,000	47,000	37,000
Shares, Vested or expected to vest (in shares)	28,000
Shares, Exercisable (in shares)	28,000
Weighted Average Exercise Price Per Share for Stock Option [Roll Forward]
Weighted Average Exercise Price Per Share, Beginning balance (in dollars per share)	$ 15.49	$ 15.20	$ 15.20
Weighted Average Exercise Price Per Share, Assumed in Merger (in dollars per share)		16.27
Weighted Average Exercise Price Per Share, Exercised (in dollars per share)	15.84	14.96	15.20
Weighted Average Exercise Price Per Share, Ending balance (in dollars per share)	15.25	$ 15.49	$ 15.20
Weighted Average Exercise Price Per Share, Vested or expected to vest (in dollars per share)	15.25
Weighted Average Exercise Price Per Share, Exercisable (in dollars per share)	$ 15.25
Weighted Average Remaining Contractual Term, Outstanding	1 year 10 months 24 days
Weighted Average Remaining Contractual Term, Vested or expected to vest	1 year 10 months 24 days
Weighted Average Remaining Contractual Term, Exercisable	1 year 10 months 24 days
Aggregate Intrinsic Value, Outstanding	$ 915
Aggregate Intrinsic Value, Vested or expected to vest	915
Aggregate Intrinsic Value, Exercisable	$ 915