Leases - Lease Term and Discount Rate (Details)	Dec. 29, 2020	Dec. 31, 2019
Leases [Abstract]
Weighted average remaining lease term - operating leases (in years)	8 years 6 months	10 years
Weighted average remaining lease term - finance leases (in years)	4 years 2 months 12 days	2 years 10 months 24 days
Weighted average discount rate - operating leases (percent)	8.60%	8.60%
Weighted average discount rate - finance leases (percent)	6.80%	7.20%