Long-Term Financing Obligation - Schedule of Future Minimum Payments Related to Master Lease Financing Obligation (Descriptors) (Details)		6 Months Ended
Jun. 15, 2020	Jun. 30, 2020
Leases [Abstract]
Interest rate	10.20%	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