Goodwill and Other Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Amortizing intangible assets, accumulated amortization	$ (100,807)	$ (84,282)
Amortizing intangible assets, net carrying amount	59,863
Indefinite-lived Intangible Assets [Line Items]
Total other intangible assets, gross carrying amount	1,957,675	506,888
Total other intangible assets, net carrying amount	1,856,868	422,606
Gaming licenses
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	1,498,309	374,709
Trademarks
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	298,000	0
Other
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	696	696
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Amortizing intangible assets, gross carrying amount	98,752	75,252
Amortizing intangible assets, accumulated amortization	(51,544)	(42,432)
Amortizing intangible assets, net carrying amount	47,208	32,820
Other
Finite-Lived Intangible Assets [Line Items]
Amortizing intangible assets, gross carrying amount	61,918	56,231
Amortizing intangible assets, accumulated amortization	(49,263)	(41,850)
Amortizing intangible assets, net carrying amount	$ 12,655	$ 14,381