Employee Benefit Plans (Details) - USD ($) $ in Thousands	7 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 29, 2016
Change in benefit obligation:
Benefit obligation at beginning of period	$ 31,037	$ 31,671
Service cost	459	865
Interest cost	765	1,406
Actuarial loss	104	82
Curtailment	0	(261)
Benefits paid	(694)	(1,240)
Benefit obligation at end of year	31,671	32,523
Amounts recognized in the statement of financial position consist of:
Current accrued benefit liability (included in Other accrued liabilities)	(1,191)	(1,252)
Noncurrent accrued benefit liability (included in Deferred compensation and other)	(30,480)	(31,271)
Total	(31,671)	(32,523)
Amounts recognized in accumulated other comprehensive loss consist of:
Net actuarial loss	9,410	9,049
Prior service credit	(711)	(642)
Total	$ 8,699	$ 8,407