Acquisitions - Purchase Price Adjustments (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jan. 01, 2019	Dec. 31, 2018	Oct. 15, 2018
Business Acquisition [Line Items]
Goodwill	$ 1,354,127	$ 1,233,939	$ 1,228,422
Measurement period adjustments
Other current liabilities	1,188
Pinnacle
Business Acquisition [Line Items]
Cash and restricted cash	124,231			$ 124,231
Assets held for sale	667,497			667,036
Other current assets	80,622			80,622
Goodwill	244,065			219,531
Customer relationships	22,400			22,400
Other long-term assets	38,767			38,767
Total assets	6,816,957			6,799,562
Long-term financing obligation, including current portion	3,432,533			3,427,016
Other current liabilities	201,735			200,547
Deferred tax liabilities	349,839			339,149
Other long-term liabilities	16,635			16,635
Total liabilities	4,000,742			3,983,347
Net assets acquired	2,816,215			2,816,215
Measurement period adjustments
Assets held for sale	461
Goodwill	24,534
Total assets	17,395
Long-term financing obligation, including current portion	5,517
Deferred tax liabilities	10,690
Total liabilities	17,395
Net assets acquired	0
Property and equipment - non-Master Leases | Pinnacle
Business Acquisition [Line Items]
Property and equipment	318,856			318,856
Property and equipment - Master Leases | Pinnacle
Business Acquisition [Line Items]
Property and equipment	3,954,919			3,984,119
Measurement period adjustments
Property and equipment	(29,200)
Gaming licenses | Pinnacle
Business Acquisition [Line Items]
Indefinite-lived intangible assets	1,067,600			1,046,000
Measurement period adjustments
Indefinite-lived intangible assets	21,600
Trademarks | Pinnacle
Business Acquisition [Line Items]
Indefinite-lived intangible assets	$ 298,000			$ 298,000