Leases Future Minimum Rent (Details) $ in Thousands	Jan. 01, 2017 USD ($)
Operating Leased Assets [Line Items]
Rental Payments, Capital Leases, 2017	$ 25,749
Rental Payments, Capital Leases, 2018	26,226
Rental Payments, Capital Leases, 2019	25,235
Rental Payments, Capital Leases, 2020	25,727
Rental Payments, Capital Leases, 2021	27,104
Rental Payments, Capital Leases, Thereafter	418,349
Rental Payments, Capital Leases, Total minimum payments	548,390
Less interest	(336,676)
Present value of minimum capital lease payments	211,714
Rental Payments, Operating Leases, 2017	74,400
Rental Payments, Operating Leases, 2018	72,080
Rental Payments, Operating Leases, 2019	71,825
Rental Payments, Operating Leases, 2020	70,831
Rental Payments, Operating Leases, 2021	70,490
Rental Payments, Operating Leases, Thereafter	898,439
Rental Payments, Operating Leases, Total minimum payments	1,258,065
Rental Receipts, Capital Leases, 2017	34,841
Rental Receipts, Capital Leases, 2018	35,024
Rental Receipts, Capital Leases, 2019	35,120
Rental Receipts, Capital Leases, 2020	35,753
Rental Receipts, Capital Leases, 2021	37,180
Rental Receipts, Capital Leases, Thereafter	572,645
Rental Receipts, Capital Leases, Total minimum payments	750,563
Rental Receipts, Operating Leases, 2017	64,562
Rental Receipts, Operating Leases, 2018	64,155
Rental Receipts, Operating Leases, 2019	64,391
Rental Receipts, Operating Leases, 2020	64,144
Rental Receipts, Operating Leases, 2021	64,226
Rental Receipts, Operating Leases, Thereafter	849,766
Rental Receipts, Operating Leases, Total minimum payments	1,171,244
Rental Receipts, Owned Properties, 2017	52,840
Rental Receipts, Owned Properties, 2018	53,013
Rental Receipts, Owned Properties, 2019	53,980
Rental Receipts, Owned Properties, 2020	54,573
Rental Receipts, Owned Properties, 2021	56,362
Rental Receipts, Owned Properties, Thereafter	996,857
Rental Receipts, Owned Properties, Total minimum payments	1,267,625
Current portion of long-term debt [Member]
Operating Leased Assets [Line Items]
Capital Lease Obligations, Current	1,902
Long-term Debt [Member]
Operating Leased Assets [Line Items]
Capital Lease Obligations, Noncurrent	$ 209,812