Merger agreement termination fee.

No definition available.

Name:	esnd_MergerAgreementTerminationFee
Namespace Prefix:	esnd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Payments of internal reorganization.

+ References

No definition available.

+ Details

Name:	esnd_PaymentsOfInternalReorganization
Namespace Prefix:	esnd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Percentage of outstanding common shares.

+ References

No definition available.

+ Details

Name:	esnd_PercentageOfOutstandingCommonShares
Namespace Prefix:	esnd_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

+ References

No definition available.

+ Details

Name:	us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Date when the business acquisition agreement was executed, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

Name:	us-gaap_BusinessAcquisitionDateOfAcquisitionAgreement1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares of equity interests issued or issuable to acquire entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(4)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
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_BusinessAcquisitionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(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

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	srt_ConsolidatedEntitiesAxis=srt_SubsidiariesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=esnd_GenuinePartsCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_OwnershipAxis=esnd_GPCShareholdersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_OwnershipAxis=esnd_ESNDsExistingStockholdersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=esnd_GenuinePartsCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_EquityInterestIssuedOrIssuableByTypeAxis=us-gaap_CommonStockMember
Namespace Prefix:
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Pending Transaction Activity - Additional Information (Detail) - USD ($) shares in Millions		6 Months Ended
	Apr. 12, 2018	Jun. 30, 2018
Business Acquisition [Line Items]
Merger agreement termination fee	$ 12,000,000
Maximum [Member]
Business Acquisition [Line Items]
Merger related expenses	3,000,000
GPC, Rhino SpinCo, Inc. [Member] \| Genuine Parts Company [Member]
Business Acquisition [Line Items]
Credit facility	400,000,000
Payments of internal reorganization	$ 347,000,000
GPC Shareholders [Member]
Business Acquisition [Line Items]
Percentage of outstanding shares	51.00%
ESND’s Existing Stockholders [Member]
Business Acquisition [Line Items]
Percentage of outstanding shares	49.00%
Genuine Parts Company [Member]
Business Acquisition [Line Items]
Acquisition of business - agreement date		Apr. 12, 2018
Genuine Parts Company [Member] \| Common Stock [Member]
Business Acquisition [Line Items]
Number of shares issuabale	40.2