Allowance for Expected Credit Losses (Details) - USD ($) $ in Thousands		3 Months Ended
	Jan. 01, 2020	Mar. 31, 2020
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 3,830	$ 3,830
Current provision for expected credit losses		(637)
Recoveries and write-offs		(4)
Ending balance	3,399	$ 2,758
Accounting Standards Update 2016-13
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Adjustment for adoption of ASU 2016-13	$ (431)