Leases - Other Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 29, 2019
Supplemental cash flow information:
Cash paid for amounts included in the measurement of operating lease liabilities	$ 61,508	$ 18,899
Right-of-use assets obtained in exchange for operating lease obligations	$ 25,562	$ 18,642
Weighted-average remaining lease term (in years)	7 years 8 months 12 days	8 years 7 months 6 days
Weighted-average discount rate	12.66%	10.54%