Document and Entity Information	Total
Prospectus:
Document Type	485BPOS
Document Period End Date	Dec. 31, 2016
Registrant Name	Westchester Capital Funds
Central Index Key	0001572617
Amendment Flag	false
Document Creation Date	Apr. 27, 2017
Document Effective Date	Apr. 27, 2017
Prospectus Date	Apr. 27, 2017
WCM Alternatives: Event-Driven Fund \| WCM Alternatives: Event-Driven Fund - Investor Class Shares
Prospectus:
Trading Symbol	WCERX
WCM Alternatives: Event-Driven Fund \| WCM Alternatives: Event-Driven Fund - Institutional Class Shares
Prospectus:
Trading Symbol	WCEIX

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The date the document was made available and submitted, in CCYY-MM-DD format. The date of submission, date of acceptance by the recipient, and the document effective date are all potentially different.

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The date when a document, upon receipt and acceptance, becomes officially effective, in CCYY-MM-DD format. Usually it is a system-assigned date time value, but it may be declared by the submitter in some cases.

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The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word "Other".

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A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation 12B
-Number 240
-Section 12b
-Subsection 1

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The date of the prospectus.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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