Leasehold Interests in Land, Net - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Leased Assets [Line Items]
Amortization of leasehold interests in land	$ 40,598,000	$ 40,352,000	$ 40,165,000
Estimated future amortization expense, 2015	39,400,000
Estimated future amortization expense, 2016	39,400,000
Estimated future amortization expense, 2017	39,400,000
Estimated future amortization expense, 2018	39,400,000
Estimated future amortization expense, 2019	39,400,000
Estimated future rental expense, thereafter	$ 1,400,000,000
MACAO [MEMBER]
Operating Leased Assets [Line Items]
Leasehold interest in land, term of contract	25 years
Leasehold interest in land, term of contract, automatic extension	10 years