Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 26, 2020

Accounting Policies [Abstract]

Estimated Useful Lives by Major Asset

Estimated useful lives by major asset category are as follows:

Buildings and building improvements	10 to 39 years
Machinery, equipment and tooling	3 to 7 years
Software and computer equipment	3 to 10 years
Furniture, fixtures and leasehold improvements	7 to 39 years