Leases - Future Minimum Commitments Under Real Estate Leases (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Operating Leased Assets [Line Items]
2019	$ 85,071
2020	95,986
2021	94,245
2022	93,761
2023	94,071
Thereafter	575,191
Total minimum lease payments	1,038,325
Fan Pier Leases
Operating Leased Assets [Line Items]
2019	66,540
2020	72,589
2021	72,589
2022	72,589
2023	72,589
Thereafter	389,855
Total minimum lease payments	746,751
Other Leases
Operating Leased Assets [Line Items]
2019	18,531
2020	23,397
2021	21,656
2022	21,172
2023	21,482
Thereafter	185,336
Total minimum lease payments	$ 291,574