Accounts Receivable (Details) - USD ($) $ in Thousands	8 Months Ended		12 Months Ended
	Sep. 12, 2015	Sep. 06, 2014	Jan. 03, 2015	Sep. 12, 2015	Jan. 03, 2015
Accounts Receivable [Abstract]
Trade				$ 42,349	$ 49,407
Less: allowance for doubtful accounts	$ 5,517	$ 1,121	$ 1,121	2,160	5,517
Trade - net				40,189	43,890
Related parties				1,101	1,452
Other				2,866	2,925
Total accounts receivable - net				$ 44,156	$ 48,267
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance at beginning of period	5,517	1,121	1,121
Balance acquired from FCC Environmental			3,943
Bad debt provision	1,081	$ 352	1,053
Accounts written off, net of recoveries	(4,438)		(600)
Balance at end of period	$ 2,160		$ 5,517