Leases (Details) $ in Thousands	Mar. 26, 2019 USD ($)
Leases
Term (in years)	1 year
Operating lease right-of-use asset	$ 472,122
Current portion of operating lease liabilities	15,955
Operating lease liabilities, net of current portion	506,973
Total operating lease liabilities	522,928
Real estate
Leases
Operating lease right-of-use asset	468,472
Current portion of operating lease liabilities	14,758
Operating lease liabilities, net of current portion	504,520
Total operating lease liabilities	519,278
Equipment
Leases
Operating lease right-of-use asset	3,650
Current portion of operating lease liabilities	1,197
Operating lease liabilities, net of current portion	2,453
Total operating lease liabilities	$ 3,650