Leases - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018	Dec. 29, 2018
Lessee, Lease, Description [Line Items]
Remaining lease term	40 years
Option to extend lease term	5 years
Operating lease right-of-use assets	$ 299,790
Total	$ 304,733
Accounting Standards Update 2016-02
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets			$ 308,300
Total			313,300
Cumulative effect		$ 23,094
Retained earnings | Accounting Standards Update 2016-02
Lessee, Lease, Description [Line Items]
Cumulative effect		$ 23,094	$ 23,100