Income Taxes - Schedule of Components of Provision for Income Tax Expense (Benefit) (Details) - Successor - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Dec. 29, 2015	Jan. 01, 2019	Jan. 02, 2018	Jan. 03, 2017
Current:
Federal	$ 4,204	$ 3,762	$ 5,884
State	270	1,800	886
Total current income tax expense (benefit)	4,474	5,562	6,770
Deferred:
Federal	7,145	698	(24,636)
State	3,710	399	2,042
Total deferred income tax expense (benefit)	10,855	1,097	(22,594)
Income tax provision (benefit)	$ 15,329	$ 6,659	$ (15,824)	$ 15,329