Represents the interest coverage ratio required to be maintained under the financial covenants.

No definition available.

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Balance Type:	na
Period Type:	instant

- Definition

Represents the floor rate of a debt instrument.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Rate of commitment fees for the unused borrowing capacity under the long-term financing arrangement that is available to the entity.

+ References

No definition available.

+ Details

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Namespace Prefix:	eri_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of notice period for redemption of Senior Notes

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

The average effective interest rate during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-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

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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

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 20, 22
-Article 5

+ Details

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

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-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

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

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_SeniorNotesMember
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Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_CreditFacilityAxis=eri_TermLoanUnderSecuredCreditFacilityMember
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- Details

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- Details

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Long-Term Debt - Resorts Secured Credit Facility - (Details) $ in Millions		6 Months Ended
	Jul. 23, 2015 USD ($)	Jun. 30, 2016 USD ($)
From January 1, 2016 to December 31, 2017 \| Maximum
Debt instruments
Leverage ratio	6.00
From January 1, 2018 and thereafter \| Maximum
Debt instruments
Leverage ratio	5.00
From January 1, 2016 through December 31, 2016 \| Minimum
Debt instruments
Leverage ratio	2.75
From January 1, 2017 and thereafter \| Minimum
Debt instruments
Leverage ratio	3.00
Senior Notes \| Minimum
Debt instruments
Notification period on or after August 1, 2018		30 days
Senior Notes \| Maximum
Debt instruments
Notification period on or after August 1, 2018		60 days
New Term Loan
Debt instruments
New senior secured term loan facility	$ 425.0
Term of debt	7 years
Amount outstanding		$ 420.8
Interest rate		4.25%
New Term Loan \| LIBOR
Debt instruments
Spread on variable rate (as a percent)	3.25%
Floor rate (as a percent)	1.00%
New Term Loan \| Base rate
Debt instruments
Spread on variable rate (as a percent)	2.25%
New Revolving Credit Facility
Debt instruments
New senior secured term loan facility	$ 150.0
Term of debt	5 years
Amount outstanding		$ 22.0
Available borrowing capacity		$ 128.0
Interest rate		5.50%
Commitment fee on unused portion of the credit facility		0.50%
New Revolving Credit Facility \| LIBOR \| Minimum
Debt instruments
Spread on variable rate (as a percent)	2.50%
New Revolving Credit Facility \| LIBOR \| Maximum
Debt instruments
Spread on variable rate (as a percent)	3.25%
New Revolving Credit Facility \| Base rate \| Minimum
Debt instruments
Spread on variable rate (as a percent)	1.50%
New Revolving Credit Facility \| Base rate \| Maximum
Debt instruments
Spread on variable rate (as a percent)	2.25%