Summary of Significant Accounting Policies - Schedule of Revenue by Geographic Location (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 27, 2020	Mar. 29, 2019
Revenues [Line Items]
Revenue, percent	100.00%
Revenue	$ 86,949	$ 97,238
Year-over-Year Change	(10.60%)
Sales Revenue, Services, Net [Member] | Geographic Concentration Risk [Member]
Revenues [Line Items]
Revenue, percent		100.00%
North America [Member]
Revenues [Line Items]
Revenue, percent	57.90%
Revenue	$ 50,307	$ 59,435
Year-over-Year Change	(15.40%)
North America [Member] | Sales Revenue, Services, Net [Member] | Geographic Concentration Risk [Member]
Revenues [Line Items]
Revenue, percent		61.10%
Europe [Member]
Revenues [Line Items]
Revenue, percent	42.10%
Revenue	$ 36,642	$ 37,803
Year-over-Year Change	(3.10%)
Europe [Member] | Sales Revenue, Services, Net [Member] | Geographic Concentration Risk [Member]
Revenues [Line Items]
Revenue, percent		38.90%