Segment Information - Summary of Assets by Segment (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information
Assets	$ 13,216,269	$ 12,681,739	$ 11,953,557
Long-lived assets	9,553,588	8,697,505	8,416,696
Las Vegas Operations
Segment Reporting Information
Assets	2,792,508	3,266,390	3,275,780
Encore Boston Harbor
Segment Reporting Information
Assets	1,865,286	1,060,530	419,001
Corporate and Other
Segment Reporting Information
Assets	2,727,163	2,891,012	2,750,721
Macau
Segment Reporting Information
Assets	5,831,312	5,463,807	5,508,055
Long-lived assets	4,387,051	4,613,950	4,973,854
Macau \| Macau Operations
Segment Reporting Information
Assets	1,903,921	1,271,544	1,161,670
Macau \| Wynn Palace
Segment Reporting Information
Assets	3,858,904	4,017,494	4,317,458
Macau \| Other Macau
Segment Reporting Information
Assets	68,487	174,769	28,927
United States
Segment Reporting Information
Long-lived assets	$ 5,166,537	$ 4,083,555	$ 3,442,842

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(12))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(11))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599

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