Revenues - Narrative (Details) - USD ($) $ in Thousands	Mar. 29, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Revenue from Contract with Customer [Abstract]
Contract with customer, deferred revenues	$ 69,485	$ 70,070	$ 66,223	$ 72,358
Contract with customer, deferred revenues, current	51,000
Contract with customer, deferred revenues, noncurrent	18,500
Deferred sales commission	$ 3,000		$ 3,400