Income Taxes - Singapore Operations (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018
Income Taxes
Period for payment of transition tax	8 years
Transition Tax obligation	$ 21.4
Singapore
Income Taxes
Foreign income tax expense (benefit)	$ 1.8	$ 4.0	$ 8.1
Income (loss) per diluted share (in dollars per share)	$ 0.04	$ 0.09	$ 0.18