Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The average effective interest rate during the reporting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateDuringPeriod
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Long-Term Debt - Summary of Long-Term Debt - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Apr. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Long-term debt, gross	$ 11,474,202		$ 10,515,272
Wynn Macau \| Senior Term Loan Facility, due 2022 \| Senior Secured Term Loan
Debt Instrument [Line Items]
Long-term debt, gross	$ 2,156,491		2,302,540
Interest rate during period	3.20%
Wynn Macau \| Senior Revolving Credit Facility, due 2022 \| Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt, gross	$ 676,711		350,232
Interest rate during period	2.71%
Available borrowing capacity	$ 74,200
Wynn Macau \| Senior Revolving Credit Facility, due 2022 \| Senior Secured Revolving Credit Facility \| Subsequent Event
Debt Instrument [Line Items]
Long-term debt, gross		$ 50,000
WRF \| WRF Credit Facilities
Debt Instrument [Line Items]
Interest rate during period	2.68%
WRF \| WRF Revolver, due 2024 \| Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt, gross	$ 791,000		0
Available borrowing capacity	40,900
Outstanding letters of credit	18,100
WRF \| WRF Revolver, due 2024 \| Senior Secured Revolving Credit Facility \| Subsequent Event
Debt Instrument [Line Items]
Long-term debt, gross		$ 25,000
Wynn/CA Plaza Property Owner, LLC And Wynn/CA Property Owner, LLC (The Borrowers) \| Retail Term Loan, due 2025 \| Term Loan
Debt Instrument [Line Items]
Long-term debt, gross	$ 615,000		$ 615,000
Interest rate during period	3.28%
LIBOR \| Wynn Macau \| Wynn Macau Credit Facilities [Member]
Debt Instrument [Line Items]
Interest in addition to variable rate	1.50%
LIBOR \| Wynn Macau \| Senior Term Loan Facility, due 2022 \| Senior Secured Term Loan
Debt Instrument [Line Items]
Interest in addition to variable rate	1.75%
Long-term debt, gross	$ 1,220,000
LIBOR \| Wynn Macau \| Senior Revolving Credit Facility, due 2022 \| Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Interest in addition to variable rate	1.75%
Long-term debt, gross	$ 384,800
LIBOR \| WRF \| WRF Credit Facilities
Debt Instrument [Line Items]
Interest in addition to variable rate	1.75%
LIBOR \| Wynn/CA Plaza Property Owner, LLC And Wynn/CA Property Owner, LLC (The Borrowers) \| Retail Term Loan, due 2025 \| Term Loan
Debt Instrument [Line Items]
Interest in addition to variable rate	1.70%
HIBOR \| Wynn Macau \| Wynn Macau Credit Facilities [Member]
Debt Instrument [Line Items]
Interest in addition to variable rate	2.25%
HIBOR \| Wynn Macau \| Senior Term Loan Facility, due 2022 \| Senior Secured Term Loan
Debt Instrument [Line Items]
Interest in addition to variable rate	1.75%
Long-term debt, gross	$ 936,600
HIBOR \| Wynn Macau \| Senior Revolving Credit Facility, due 2022 \| Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Interest in addition to variable rate	1.75%
Long-term debt, gross	$ 291,900