Valuation Reserves (Tables)

12 Months Ended

Dec. 29, 2017

Valuation and Qualifying Accounts [Abstract]

Schedule of allowance for doubtful accounts

	Balance at Beginning of Period		Additions Charged to Expense		Deductions			Balance at End of Period
Allowance for doubtful accounts
December 29, 2017	$	6,848	$	4,061	$	(2,883	)	$	8,026
December 30, 2016	5,803		3,224		(2,179		)	6,848
December 25, 2015	4,675		2,909		(1,781		)	5,803

Schedule of inventory valuation reserve

Inventory valuation reserve
December 29, 2017	$	2,122	$	2,996	$	(3,184	)	$	1,934
December 30, 2016	1,956		3,043		(2,877		)	2,122
December 25, 2015	1,130		3,288		(2,462		)	1,956

Schedule of allowance for deferred tax assets

Allowance for deferred tax assets
December 29, 2017	$	—	$	289	$	—	$	289
December 30, 2016	—		—		—		—
December 25, 2015	—		—		—		—