Summary of Significant Accounting Policies and Basis of Presentation - Property And Equipment Estimated Useful Lives (Detail)	12 Months Ended
	Dec. 28, 2019
Land Improvements [Member]
Property Plant And Equipment [Line Items]
Property, plant and equipment, useful life	15 years
Minimum [Member] | Buildings and Improvements [Member]
Property Plant And Equipment [Line Items]
Property, plant and equipment, useful life	15 years
Minimum [Member] | Equipment [Member]
Property Plant And Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Maximum [Member] | Buildings and Improvements [Member]
Property Plant And Equipment [Line Items]
Property, plant and equipment, useful life	40 years
Maximum [Member] | Equipment [Member]
Property Plant And Equipment [Line Items]
Property, plant and equipment, useful life	15 years