Recent Accounting Pronouncements - Textual (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Deferred revenue	$ 2,399	$ (915)	$ (3,634)
Increase (decrease) in inventories	8,962	18,037	$ (4,526)
Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Adjustment opening balance of equity		900
Deferred revenue		(1,600)
Increase (decrease) in inventories		$ (700)
Accounting Standards Update 2016-02 [Member] | Minimum [Member] | Pro Forma [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Lease liabilities	10,500
Lease assets	10,500
Accounting Standards Update 2016-02 [Member] | Maximum [Member] | Pro Forma [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Lease liabilities	12,500
Lease assets	$ 12,500