Long-Term Financing Obligation - Schedule of Future Minimum Payments Related to Master Lease Financing Obligation (Parenthetical) (Details)	12 Months Ended
Dec. 31, 2019
Leases [Abstract]
Interest rate	10.20%

Failed sale leaseback transaction imputed interest rate.

No definition available.

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