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Property Transactions, Net - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property and equipment, net	$ 18,285,955		$ 18,285,955	$ 20,729,888
Other property transactions, net			(55,508)	(53,850)	$ (50,279)
Circus Circus Las Vegas and Adjacent Land [Member]
Property, Plant and Equipment [Line Items]
Consideration receivable from sale of assets	825,000		825,000
Consideration receivable from sale of assets, cash receivable	662,500		662,500
Consideration receivable from sale of assets, notes receivable face value	162,500		162,500
Consideration receivable from sale of assets, notes receivable fair value	$ 133,700		$ 133,700
Debt instrument, interest rate	7.31%		7.31%
Non-cash impairment charge		$ 219,000	$ 219,000
Recognized loss on disposition	$ 2,000
Value of assets and liabilities disposed	810,000		810,000
Proceeds from sale of land	14,000
Property and equipment, net	$ 785,000		785,000
M G M Cotai Production [Member]
Property, Plant and Equipment [Line Items]
Other property transactions, net			$ (24,000)
Monte Carlo Rebranding [Member]
Property, Plant and Equipment [Line Items]
Other property transactions, net				$ (20,000)	$ (34,000)
Secured Note Due 2024 Interest Rate in First Two Years [Member] | Circus Circus Las Vegas and Adjacent Land [Member]
Property, Plant and Equipment [Line Items]
Long-term debt, interest rate (as a percent)	3.00%		3.00%
Secured Note Due 2024 Interest Rate in Following Two Years [Member] | Circus Circus Las Vegas and Adjacent Land [Member]
Property, Plant and Equipment [Line Items]
Long-term debt, interest rate (as a percent)	4.00%		4.00%
Secured Note Due 2024 Interest Rate in Fifth Year [Member] | Circus Circus Las Vegas and Adjacent Land [Member]
Property, Plant and Equipment [Line Items]
Long-term debt, interest rate (as a percent)	4.50%		4.50%

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