Revenue (Tables)

3 Months Ended

Mar. 30, 2019

Revenue From Contract With Customer [Abstract]

Summary of Contract Assets and Liabilities

Contract assets and liabilities consisted of the following (in thousands):

	March 30, 2019		December 29, 2018
Contract assets	$	3,707	$	2,189
Contract liabilities		12,146		10,743
Net contract liabilities	$	8,439	$	8,554