Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Document Type	dei_DocumentType	485BPOS
Document Period End Date	dei_DocumentPeriodEndDate	Oct. 27, 2017
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. 27, 2017
Document Effective Date	dei_DocumentEffectiveDate	Nov. 01, 2017
Prospectus Date	rr_ProspectusDate	Nov. 01, 2017
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 KIM Korea Equity ETF (Prospectus Summary) \| AdvisorShares KIM Korea Equity ETF \| AdvisorShares KIM Korea Equity ETF
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	KOR
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 Meidell Tactical Advantage ETF (Prospectus Summary) \| AdvisorShares Meidell Tactical Advantage ETF \| AdvisorShares Meidell Tactical Advantage ETF
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	MATH
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 Peritus High Yield ETF (Prospectus Summary) \| AdvisorShares Peritus High Yield ETF \| AdvisorShares Peritus High Yield ETF
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	HYLD
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 Wilshire Buyback ETF (Prospectus Summary) \| AdvisorShares Wilshire Buyback ETF \| AdvisorShares Wilshire Buyback ETF
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TTFS
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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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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- 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".

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No definition available.

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- 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

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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
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- Definition

Trading symbol of an instrument as listed on an exchange.

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- Definition

The date of the prospectus.

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-Publisher SEC
-Name Form
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-Chapter A
-Section 1
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