Other Comprehensive Income (Loss) - Reclassification out of Accumulated Other Comprehensive Income (Details) - Reclassification out of Accumulated Other Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	$ 632	$ 529	$ 312
Amortization of prior service, net actuarial loss, and other
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	372	291	337
Settlement loss/curtailment (gain)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	$ 260	$ 238	$ (25)