Reno Acquisition, MTR Merger and Final Purchase Accounting - Summary of the Final Purchase Price Accounting of the Assets Acquired and Liabilities Assumed at the Merger Date (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015	Nov. 24, 2015	Sep. 19, 2014
Estimated fair values of the assets acquired and liabilities assumed
Current and other assets, net	$ 23,740,000
Property and equipment	183,033,000
Goodwill	66,826,000	$ 66,826,000	$ 0
Intangible assets	6,000,000
Other noncurrent assets	10,809,000
Net assets acquired	223,582,000
Silver Legacy Joint Venture
Estimated fair values of the assets acquired and liabilities assumed
Current and other assets, net	21,625,000
Property and equipment	168,037,000
Intangible assets	5,000,000
Other noncurrent assets	10,809,000
Net assets acquired	205,471,000
Circus Reno
Estimated fair values of the assets acquired and liabilities assumed
Current and other assets, net	2,115,000
Property and equipment	14,996,000
Intangible assets	1,000,000
Net assets acquired	18,111,000
MTR Gaming
Estimated fair values of the assets acquired and liabilities assumed
Current and other assets, net				$ 75,031,000
Property and equipment				289,211,000
Goodwill	$ 66,826,000	$ 66,826,000		66,826,000
Intangible assets				473,000,000
Other noncurrent assets				20,381,000
Total assets				924,449,000
Current liabilities				46,446,000
Long-term debt				624,877,000
Deferred income taxes				143,104,000
Other noncurrent liabilities				7,011,000
Total liabilities assumed				821,438,000
Net assets acquired				$ 103,011,000