Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Document Type	dei_DocumentType	485BPOS
Document Period End Date	dei_DocumentPeriodEndDate	Jun. 30, 2018
Entity Registrant Name	dei_EntityRegistrantName	AdvisorShares Trust
Entity Central Index Key	dei_EntityCentralIndexKey	0001408970
Amendment Flag	dei_AmendmentFlag	false
Document Creation Date	dei_DocumentCreationDate	Oct. 29, 2018
Document Effective Date	dei_DocumentEffectiveDate	Nov. 01, 2018
Prospectus Date	rr_ProspectusDate	Nov. 01, 2018
AdvisorShares Cornerstone Small Cap ETF (Prospectus Summary) \| AdvisorShares Cornerstone Small Cap ETF \| AdvisorShares Cornerstone Small Cap ETF
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	SCAP
AdvisorShares Dorsey Wright ADR ETF (Prospectus Summary) \| AdvisorShares Dorsey Wright ADR ETF \| AdvisorShares Dorsey Wright ADR ETF
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	AADR
AdvisorShares Focused Equity ETF (Prospectus Summary) \| AdvisorShares Focused Equity ETF \| AdvisorShares Focused Equity ETF
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CWS
AdvisorShares Madrona Domestic ETF (Prospectus Summary) \| AdvisorShares Madrona Domestic ETF \| AdvisorShares Madrona Domestic ETF
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	FWDD
AdvisorShares Madrona International ETF (Prospectus Summary) \| AdvisorShares Madrona International ETF \| AdvisorShares Madrona International ETF
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	FWDI
AdvisorShares Madrona Global Bond ETF (Prospectus Summary) \| AdvisorShares Madrona Global Bond ETF \| AdvisorShares Madrona Global Bond ETF
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	FWDB
ADVISORSHARES NEW TECH AND MEDIA ETF (Prospectus Summary) \| ADVISORSHARES NEW TECH AND MEDIA ETF \| ADVISORSHARES NEW TECH AND MEDIA ETF
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	FNG
AdvisorShares Newfleet Multi-Sector Income ETF (Prospectus Summary) \| AdvisorShares Newfleet Multi-Sector Income ETF \| AdvisorShares Newfleet Multi-Sector Income ETF
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	MINC
AdvisorShares Pacific Asset Enhanced Floating Rate ETF (Prospectus Summary) \| AdvisorShares Pacific Asset Enhanced Floating Rate ETF \| AdvisorShares Pacific Asset Enhanced Floating Rate ETF
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	FLRT
AdvisorShares Ranger Equity Bear ETF (Prospectus Summary) \| AdvisorShares Ranger Equity Bear ETF \| AdvisorShares Ranger Equity Bear ETF
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	HDGE
AdvisorShares Sage Core Reserves ETF (Prospectus Summary) \| AdvisorShares Sage Core Reserves ETF \| AdvisorShares Sage Core Reserves ETF
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	HOLD
AdvisorShares STAR Global Buy-Write ETF (Prospectus Summary) \| AdvisorShares STAR Global Buy-Write ETF \| AdvisorShares STAR Global Buy-Write ETF
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	VEGA
AdvisorShares Vice ETF (Prospectus Summary) \| AdvisorShares Vice ETF \| AdvisorShares Vice ETF
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	ACT
AdvisorShares Treesdale Rising Rates ETF (Prospectus Summary) \| AdvisorShares Treesdale Rising Rates ETF \| AdvisorShares Treesdale Rising Rates ETF
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	HDGB

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- Definition

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.

+ References

No definition available.

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- Definition

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.

+ References

No definition available.

+ Details

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Namespace Prefix:	dei_
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- Definition

The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD.

+ References

No definition available.

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Namespace Prefix:	dei_
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- Definition

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".

+ References

No definition available.

+ Details

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Namespace Prefix:	dei_
Data Type:	dei:submissionTypeItemType
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Period Type:	duration

- Definition

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

+ Details

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Namespace Prefix:	dei_
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- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ 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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Namespace Prefix:	dei_
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- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

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Namespace Prefix:	dei_
Data Type:	xbrli:normalizedStringItemType
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- Definition

The date of the prospectus.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 1
-Subsection a
-Paragraph 3

+ Details

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Namespace Prefix:	rr_
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- References

No definition available.

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