CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands	7 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 29, 2016	May 28, 2015	May 29, 2014
Change in unrealized gain on available for sale investments, net of tax benefit	$ 0	$ 9	$ 0	$ (1)
Pension loss arising during period, net of tax benefit	42	40	570	668
Amortization of the net actuarial loss and prior service credit related to the pension, net of tax effect	84	55	127	114
Pension curtailment gain, net of tax effect	0	127	0	0
Fair market value adjustment of interest rate swap, net of tax effect (benefit)	25	95	110	65
Reclassification adjustment on interest rate swap included in interest expense, net of tax effect	43	25	77	76
Reclassification adjustment related to interest rate swap de-designation, net of tax effect	$ 0	$ 63	$ 0	$ 0