Significant Accounting Policies - Recent Accounting Pronouncements (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Jan. 01, 2019
Recent Accounting Pronouncements
Lease, Practical Expedients, Package [true false]	true
Lease, Practical Expedient, Use of Hindsight [true false]	true
Operating lease assets	$ 1,240,976
Operating lease liabilities	1,317,950
Prepaid rent		$ 34,961
Property and equipment, net	831,599	913,275
Intangible assets, net	437,207	26,209
Deferred rent liabilities		79,697
Deemed landlord financing liabilities		113,095
ASU 2016-02
Recent Accounting Pronouncements
Operating lease assets	975,100
Operating lease liabilities	1,045,400
Reduction to retained earnings due to adoption of new accounting standards	41,500
Prepaid rent	39,200
Property and equipment, net	140,200
Intangible assets, net	6,200
Deferred rent liabilities	82,100
Deemed landlord financing liabilities	$ 118,700
Accounting Standards Update 2014-09
Recent Accounting Pronouncements
Reduction to retained earnings due to adoption of new accounting standards		3,600
Increase to deferred revenue		$ 4,800