Debt instrument maturity year.

No definition available.

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Balance Type:	na
Period Type:	duration

- Definition

Debt instrument redemption price percentage if change of control takes place .

+ References

No definition available.

+ Details

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

- Definition

Debt instrument redemption price percentage if sells of assets takes place.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Percentage price of principal amount of notes redeemed at which debt can be redeemed by the issuer.

+ References

No definition available.

+ Details

Name:	eri_DebtInstrumentRedemptionPricePercentageOnNotesRedeemed
Namespace Prefix:	eri_
Data Type:	num:percentItemType
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Period Type:	duration

- 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

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=119400593&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

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ 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 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

+ References

+ Details

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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

Start date of debt instrument redemption period, in CCYY-MM-DD format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

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

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

+ Details

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

- Details

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- Details

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- Details

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- Details

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Long-Term Debt and Other Long-Term Liabilities - 6% Senior Notes Due 2026 - Additional Information (Details) - USD ($) $ in Thousands			12 Months Ended
	Oct. 01, 2018	Sep. 20, 2018	Dec. 31, 2019	Dec. 31, 2018
Long-term debt
Debt instrument interest rate terms			however, that in no event will LIBOR be less than zero or the base rate be less than 1.00%.
Notes \| Prior to September 15, 2021
Long-term debt
Redemption price on notes redeemed (as a percent)		100.00%
6% Senior Notes due 2026
Long-term debt
Long-term debt, gross		$ 600,000	$ 600,000	$ 600,000
Interest rate (as a percent)	6.00%	6.00%	6.00%
Senior notes, maturity year	2026		2026
Debt instrument interest rate terms			Interest on the 6% Senior Notes due 2026 will be paid semi-annually in arrears on March 15 and September 15 of each year.
Redemption period start date			Sep. 15, 2021
Percentage of repurchase			100.00%
6% Senior Notes due 2026 \| Prior to September 15, 2021
Long-term debt
Redemption price on notes redeemed (as a percent)		106.00%
Percentage of issue price of principal amount		101.00%
6% Senior Notes due 2026 \| Minimum
Long-term debt
Notification period			30 days
6% Senior Notes due 2026 \| Maximum
Long-term debt
Notification period			60 days
6% Senior Notes due 2026 \| Maximum \| Prior to September 15, 2021
Long-term debt
Redemption price (as a percent)		35.00%