Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629

Name:	us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Long-Term Debt Long-Term Debt - 5 3/8% First Mortgage Notes due 2022 (Details) - USD ($) $ in Thousands			3 Months Ended	12 Months Ended
	Jun. 12, 2017	May 04, 2017	Sep. 30, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Loss on extinguishment of debt				$ (104)	$ 55,360	$ 0
5 3/8% Wynn Las Vegas First Mortgage Notes, Due March 15, 2022 \| First Mortgage Notes
Debt Instrument [Line Items]
Debt instrument, interest rate		5.375%
Extinguishment of Debt, Amount	$ 402,000	$ 498,000
Extinguishment of debt, amount premium	$ 10,800	$ 14,600
Loss on extinguishment of debt			$ 20,800