Commitments And Contingencies (Schedule Of Contractual Obligations And Commitments) (Details) $ in Thousands	Jun. 29, 2018 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Remainder of Fiscal 2018	$ 0
Naming rights, Fiscal 2019	7,811
Naming rights, Fiscal 2020	7,909
Naming rights, Fiscal 2021	8,008
Naming rights, Fiscal 2022	8,108
Naming rights, Thereafter	86,865
Naming rights, Total	118,701
Donation commitments, Remainder of Fiscal 2018	0
Donation commitments, Fiscal 2019	6,300
Donation commitments, Fiscal 2020	322
Donation commitments, Fiscal 2021	122
Donation commitments, Fiscal 2022	122
Donation commitments, Thereafter	958
Donation commitments, Total	82,297
Operating leases, Remainder of 2018	4,484
Operating leases, Fiscal 2019	17,105
Operating leases, Fiscal 2020	14,381
Operating leases, Fiscal 2021	11,105
Operating leases, Fiscal 2022	9,524
Operating leases, Thereafter	25,698
Operating leases, Total	81,399
Purchase obligation, Remainder of 2018	32,872
Purchase obligation, Fiscal 2019	25,536
Purchase obligation, Fiscal 2020	22,225
Purchase Obligation, Fiscal 2021	433
Purchase obligation, Fiscal 2022	333
Purchase obligation, Thereafter	0
Purchase obligation, Total	7,824
Total, due in Remainder of Fiscal 2018	37,356
Total, due in Fiscal 2019	56,752
Total, due in Fiscal 2020	44,837
Total, due in Fiscal 2021	19,668
Total, due in Fiscal 2022	18,087
Total, due Thereafter	113,521
Total due	$ 290,221