Name:	ecol_MaximumAmountOfOutOfPocketExpensesIncurredByPotentialAcquiredBusinessTerminationFeeWillBeCalculatedOn
Namespace Prefix:	ecol_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Maximum amount termination fee that would be due to potential acquired business, per merger agreement.

No definition available.

Name:	ecol_MaximumAmountOfTerminationFeeDueToPotentialAcquiredBusiness
Namespace Prefix:	ecol_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Represents the amount of a termination fee due to the acquiring company per the merger agreement if the merger is terminated.

No definition available.

Name:	ecol_TerminationFeeDueToAcquiringCompanyPerAgreement
Namespace Prefix:	ecol_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents the percentage on out-of -pocket merger costs incurred by the potential acquired business used to calculate the termination fee due to the potential acquired company per the merger agreement if the merger is terminated under specific circumstances.

No definition available.

Name:	ecol_TerminationFeeDueToPotentialAcquiredCompanyPercentageOfExpensesIncurred
Namespace Prefix:	ecol_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

No definition available.

Name:	us-gaap_BusinessAcquisitionSharePrice
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.