0001398344-13-003178.txt : 20130711 0001398344-13-003178.hdr.sgml : 20130711 20130711141418 ACCESSION NUMBER: 0001398344-13-003178 CONFORMED SUBMISSION TYPE: 485BPOS PUBLIC DOCUMENT COUNT: 7 FILED AS OF DATE: 20130711 DATE AS OF CHANGE: 20130711 EFFECTIVENESS DATE: 20130711 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Investment Managers Series Trust CENTRAL INDEX KEY: 0001318342 IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FILING VALUES: FORM TYPE: 485BPOS SEC ACT: 1933 Act SEC FILE NUMBER: 333-122901 FILM NUMBER: 13963598 BUSINESS ADDRESS: STREET 1: 803 W. MICHIGAN ST. CITY: MILWAUKEE STATE: WI ZIP: 53233 BUSINESS PHONE: 626-914-4141 MAIL ADDRESS: STREET 1: 803 W. MICHIGAN ST. CITY: MILWAUKEE STATE: WI ZIP: 53233 FORMER COMPANY: FORMER CONFORMED NAME: Claymore Trust DATE OF NAME CHANGE: 20050603 FORMER COMPANY: FORMER CONFORMED NAME: Claymore Equity Trust DATE OF NAME CHANGE: 20050218 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Investment Managers Series Trust CENTRAL INDEX KEY: 0001318342 IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FILING VALUES: FORM TYPE: 485BPOS SEC ACT: 1940 Act SEC FILE NUMBER: 811-21719 FILM NUMBER: 13963599 BUSINESS ADDRESS: STREET 1: 803 W. MICHIGAN ST. CITY: MILWAUKEE STATE: WI ZIP: 53233 BUSINESS PHONE: 626-914-4141 MAIL ADDRESS: STREET 1: 803 W. MICHIGAN ST. CITY: MILWAUKEE STATE: WI ZIP: 53233 FORMER COMPANY: FORMER CONFORMED NAME: Claymore Trust DATE OF NAME CHANGE: 20050603 FORMER COMPANY: FORMER CONFORMED NAME: Claymore Equity Trust DATE OF NAME CHANGE: 20050218 0001318342 S000041245 Gratry International Growth Fund C000127894 Institutional Class GGIGX C000127895 Investor Class 485BPOS 1 fp0007559_485bpos-xbrl.htm fp0007559_485bpos-xbrl.htm
 
AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON July 11, 2013

 REGISTRATION NOS. 333 -122901
 811 -21719


 UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549


FORM N-1A

 
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
[  ]
PRE-EFFECTIVE AMENDMENT NO.
[  ]
POST-EFFECTIVE AMENDMENT NO. 374
[X]
AND/OR
 
   
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940
[  ]
AMENDMENT NO. 385
[X]
 

 
INVESTMENT MANAGERS SERIES TRUST
(Exact Name of Registrant as Specified in Charter)

803 West Michigan Street
Milwaukee, WI 53233

(Address of Principal Executive Offices, including Zip Code)
Registrant's Telephone Number, Including Area Code: (414) 299-2295

Constance Dye Shannon
UMB Fund Services, Inc.
803 West Michigan Street
Milwaukee, WI 53233

(Name and Address of Agent for Service)

COPIES TO:
Michael Glazer
Bingham McCutchen LLP
355 South Grand Avenue, Suite 4400
Los Angeles, CA 90071-3106 

It is proposed that this filing will become effective (check appropriate box):

 
[X]
immediately upon filing pursuant to paragraph (b) of Rule 485; or
 
[  ]
on __________, pursuant to paragraph (b) of Rule 485; or
 
[  ]
60 days after filing pursuant to paragraph (a)(1) of Rule 485;
 
[  ]
on __________ pursuant to paragraph (a)(1) of Rule 485; or
 
[  ]
75 days after filing pursuant to paragraph (a)(2) of Rule 485; or
 
[  ]
on __________ pursuant to paragraph (a)(2) of Rule 485; or
 
[  ]
on __________ pursuant to paragraph (a)(3) of Rule 485.

If appropriate, check the following box:

[  ]
This post-effective amendment designates a new effective date for a previously filed post-effective amendment.

 
 

 

SIGNATURES
 
Pursuant to the requirements of the Securities Act of 1933, as amended, and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all of the requirements for effectiveness of this registration statement under rule 485(b) under the Securities Act of 1933 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of Milwaukee and State of Wisconsin, on the 11th day of July, 2013.

   INVESTMENT MANAGERS SERIES TRUST
     
  By: 
/s/ John P. Zader
   
John P. Zader, President

Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed on the 11th day of July, 2013, by the following persons in the capacities set forth below.
 
Signature
 
Title
 
   
Ashley Toomey Rabun
 
 
Trustee
   
William H. Young
 
 
Trustee
   
Charles H. Miller
 
 
Trustee
/s/ John P. Zader
   
John P. Zader
 
Trustee and President
 
 
 
Eric M. Banhazl
 
/s/ Rita Dam
 
Trustee and Vice President
Rita Dam
 
Treasurer and Principal Financial and Accounting Officer
 
By
/s/Rita Dam
 
Attorney-in-fact, pursuant to power of attorney previously filed
with Post-Effective Amendment No. 31 on February 1, 2008.
 
 
 

 
 
EXHIBIT INDEX
 
Exhibit
Exhibit No.
XBRL Instance Document
EX-101.INS
XBRL Taxonomy Extension Schema Document
EX-101.SCH
XBRL Taxonomy Extension Calculation Linkbase
EX-101.CALC
XBRL Taxonomy Extension Definition Linkbase
EX-101.DEF
XBRL Taxonomy Extension Labels Linkbase
EX-101.LAB
XBRL Taxonomy Extension Presentation Linkbase
EX-101.PRE
 
EX-101.INS 2 imstgratry-20130628.xml XBRL INSTANCE DOCUMENT 0001318342 2013-06-28 2013-06-28 0001318342 imstgratry:S000041245Member 2013-06-28 2013-06-28 0001318342 imstgratry:S000041245Member imstgratry:C000127895Member 2013-06-28 2013-06-28 0001318342 imstgratry:S000041245Member imstgratry:C000127894Member 2013-06-28 2013-06-28 iso4217:USD pure shares iso4217:USD shares 0001318342 Investment Managers Series Trust 485BPOS false <p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><B>SUMMARY SECTION</b></p><hr size="2" style="color: Black; width: 100%"/><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 14pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Gratry International Growth Fund</b></p> <p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Investment Objective</b></p> <p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">The investment objective of the Gratry International Growth Fund (the &ldquo;Fund&rdquo;) is to seek long-term capital appreciation.</p> <p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Fees and Expenses of the Fund</b></p> <p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.</p> <p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Shareholder Fees</b><br><i>(fees paid directly from your investment)</i></p> <p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Annual Fund Operating Expenses</b><br><i>(expenses that you pay each year as a percentage of the value of your investment)</i></p> <div style="display: none;"> ~ http://xbrl.sec.gov/rr/role/ShareholderFeesData column dei_LegalEntityAxis compact imstgratry_S000041245Member ~ </div> 0 0 -0.01 20.00 15.00 15.00 0 0 -0.01 20.00 15.00 15.00 <div style="display: none;"> ~ http://xbrl.sec.gov/rr/role/OperatingExpensesData column dei_LegalEntityAxis compact imstgratry_S000041245Member ~ </div> 0.007 0.0025 0.0102 0.0197 -0.0052 0.0145 0.007 0 0.0102 0.0172 -0.0052 0.012 <p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><i><b><u>Example</u></b></i></p> <p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund&rsquo;s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</p> <div style="display: none;"> ~ http://xbrl.sec.gov/rr/role/ExpenseExample column dei_LegalEntityAxis compact imstgratry_S000041245Member ~ </div> 148 568 122 491 <p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Portfolio Turnover</b></p> <p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">The Fund pays transaction costs, such as commissions, when it buys and sells securities (or &ldquo;turns over&rdquo; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund&rsquo;s performance. The Fund is newly-created and, as a result, does not yet have a portfolio turnover rate.</p> <p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Principal Investment Strategies</b></p> <p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">Under normal circumstances, the Fund will invest at least 75% of its net assets in equity securities of non-U.S. domiciled companies or depository receipts of non-U.S. domiciled companies. Although the Fund may invest in any size companies, investments will generally be in large capitalization multinational companies. The Fund&rsquo;s advisor considers large capitalization companies to be those with market capitalization of $10 billion or higher at the time of investment. However, on occasion, the Fund may invest in companies with a market capitalization below $10 billion. The Fund invests primarily in equity securities of non-U.S. domiciled companies located in developed countries but may also invest in companies located in emerging market countries. The Fund may also invest in exchange-traded funds ("ETFs").</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">The Fund&rsquo;s investment strategy will typically be implemented by investing in the American Depository Receipts (&ldquo;ADRs&rdquo;) of non-U.S. companies. ADRs are negotiable certificates evidencing ownership of shares of foreign issuers and are alternatives to directly purchasing the underlying foreign securities in their national markets and currencies. The use of ADR&rsquo;s avoids the need for a global custodian and eliminates foreign currency exchange transactions that would otherwise be required to buy and sell the ordinary shares of companies in their local markets. The Fund generally will invest in securities of companies located in at least three different countries.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">In investing the Fund's assets, the Fund&rsquo;s advisor employs an active fundamental investment process to identify companies that it believes exhibit sound financial characteristics and are run by proven management teams. On an ongoing basis, the Fund&rsquo;s advisor employs a top-down macroeconomic analysis on each country in the investable universe, as defined from time to time. The Fund&rsquo;s advisor&rsquo;s &ldquo;top-down&rdquo; views are implemented with a fundamental bottom-up security selection process, whereby the Fund&rsquo;s advisor seeks to invest in companies that it believes to exhibit superior growth metrics, sound financial characteristics, and reasonable stock prices relative to perceived growth prospects at the time of purchase. The Fund&rsquo;s advisor incorporates a growth orientation to seek to identify securities of high quality companies trading at reasonable values compared to their future earnings potential. In constructing the Fund&rsquo;s portfolio, the Fund&rsquo;s advisor broadly diversifies investments across countries, sectors, and companies.</p> <p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Principal Risks of Investing</b></p> <p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">The Fund&rsquo;s principal risks are mentioned below. Before you decide whether to invest in the Fund, carefully consider these risk factors and special considerations associated with investing in the Fund, which may cause investors to lose money.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Market Risk. </b>Market risk is the risk that the Fund&rsquo;s share price may be affected by a sudden decline in the market value of an investment, or by an overall decline in the stock market due to, among other things, real or perceived adverse economic conditions, changes in general outlook for corporate earnings, changes in interest or currency rates or adverse investor sentiment generally.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Equity Securities Risk</b>. Investment in equity securities involves substantial risks and may be subject to wide and sudden fluctuations in market value, with a resulting fluctuation in the amount of profits and losses due to general market and economic conditions or factors relating to specific companies in which the Fund invests.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Foreign Securities Risk. </b>The prices of foreign securities may be more volatile than those of U.S. securities because of economic and social conditions abroad, political developments, and changes in the regulatory environment of foreign countries. In addition, changes in exchange rates and interest rates may adversely affect the value of the Fund&rsquo;s foreign investments. Foreign companies are generally subject to different legal and accounting standards than U.S. companies, and foreign financial intermediaries may be subject to less supervision and regulation than U.S. financial firms. The Fund&rsquo;s investments in ADRs are subject to these risks, even though ADRs are denominated in U.S. dollars, because changes in currency and exchange rates affect the values of the issuers of ADRs. In addition, the underlying issuers of certain depository receipts, particularly unsponsored or unregistered depository receipts, are under no obligation to distribute shareholder communications to the holders of such receipts, or to pass through to them any voting rights with respect to the deposited securities.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Currency Risk. </b>Foreign securities that trade in, and receive revenues in, foreign currencies are subject to the risk that those currencies may decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar may decline in value relative to the currency being hedged.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Emerging Market Risk.</b> The Fund&rsquo;s investments in foreign issuers in developing or emerging market countries involve exposure to changes in economic and political factors. The economies of most emerging market countries are in the infancy stage of capital market development. As a result, their economic systems are still evolving and their political systems are typically less stable than those in developed economies. Emerging market countries often suffer from currency devaluation and higher rates of inflation.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Growth-Oriented Investment Strategies Risk</b>. Growth funds generally focus on stocks of companies believed to have above-average potential for growth in revenue and earnings. Growth stock prices frequently reflect projections of future earnings or revenues, and if earnings growth expectations aren&rsquo;t met their valuations may return to more typical norms, causing their stock prices to fall.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Small- and Mid-Cap Company Risk.</b> The securities of small- or mid-capitalization companies may be subject to more abrupt or erratic market movements and may have lower trading volumes or more erratic trading than securities of larger companies or the market averages in general. In addition, such companies typically are subject to a greater degree of change in earnings and business prospects than are larger, more established companies.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>ETF Risk.</b> ETFs typically trade on securities exchanges and their shares may, at times, trade at a premium or discount to their net asset values. In addition, an ETF may not replicate exactly the performance of the benchmark index it seeks to track for a number of reasons, including transaction costs incurred by the ETF, the temporary unavailability of certain index securities in the secondary market or discrepancies between the ETF and the index with respect to the weighting of securities or the number of securities held. Investing in ETFs, which are investment companies, may involve duplication of advisory fees and certain other expenses.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Management Risk. </b>The Fund is subject to management risk because it is an actively managed portfolio. The Fund&rsquo;s advisor applies investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these will produce the desired results.</p> <p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Performance</b></p> <p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">The Fund is new and does not have a full calendar year performance record to compare against other mutual funds or broad measures of securities market performance such as indices. Performance information will be available after the Fund has been in operation for one calendar year.</p> GGIGX &ldquo;Other expenses&rdquo; have been estimated for the current fiscal year. 2014-09-30 Before you decide whether to invest in the Fund, carefully consider these risk factors and special considerations associated with investing in the Fund, which may cause investors to lose money. The Fund is new and does not have a full calendar year performance record to compare against other mutual funds or broad measures of securities market performance such as indices. 2013-06-28 2013-06-28 2013-06-28 2013-06-28 "Other expenses" have been estimated for the current fiscal year. The Fund's advisor has contractually agreed to waive its fees and/or absorb expenses of the Fund to ensure that total annual fund operating expenses (excluding, as applicable, taxes, leverage interest, brokerage commissions, dividend expenses on short sales, acquired fund fees and expenses as determined in accordance with Form N-1A, expenses incurred in connection with any merger or reorganization, or extraordinary expenses such as litigation expenses) do not exceed 1.45 % and 1.20 % of the average daily net assets of the Fund's Investor Class and Institutional Class shares, respectively. This agreement is in effect until September 30, 2014, and may be terminated before that date only by the Trust's Board of Trustees. The Fund's advisor is permitted to seek reimbursement from the Fund, subject to limitations, for fees it waived and Fund expenses it paid for three years from the date of any such waiver or payment. 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Performance Table Explains why after Tax Higher Money Market, Seven Day Yield Caption Money Market, Seven Day Yield Column Name 7-Day Yield Phone 7-Day Yield 7-Day Tax Equivalent Yield Thirty Day Yield Caption Thirty Day Yield Column Name 30-Day Yield Phone 30-Day Yield 30-Day Tax Equivalent Yield Risk/Return Detail Table Text Block EX-101.PRE 7 imstgratry-20130628_pre.xml XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE XML 8 Show.js IDEA: XBRL DOCUMENT /** * Rivet Software Inc. * * @copyright Copyright (c) 2006-2011 Rivet Software, Inc. 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It is commonly abbreviated as CIK.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation 12B -Number 240 -Section 12b -Subsection 1 false06false 2dei_AmendmentFlagdei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsexbrli:booleanItemTypenaIf the value is true, then the document is an amendment to previously-filed/accepted document.No definition available.false07false 2dei_DocumentCreationDatedei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse002013-06-28falsefalsetruexbrli:dateItemTypedateThe 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.No definition available.false08false 2dei_DocumentEffectiveDatedei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse002013-06-28falsefalsetruexbrli:dateItemTypedateThe 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.No definition available.false09false 2rr_ProspectusDaterr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse002013-06-28falsefalsetruexbrli:dateItemTypedateThe date of the prospectus.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 1 -Subsection a -Paragraph 3 false010false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2false truefalseimstgratry_S000041245http://www.sec.gov/CIK0001318342duration2013-06-28T00:00:002013-06-28T00:00:00falsefalseGratry International Growth Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldiimstgratry_S000041245Memberdei_LegalEntityAxisexplicitMembernanafalse011true 1rr_RiskReturnAbstractrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse012false 2rr_RiskReturnHeadingrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><B>SUMMARY SECTION</b></p><hr size="2" style="color: Black; width: 100%"/><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 14pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Gratry International Growth Fund</b></p>falsefalsefalsexbrli:stringItemTypestringRisk/Return Summary Investment Objectives/Goals Include the following information, in plain English under rule 421(d) under the Securities Act, in the order and subject matter indicatedReference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 2 false013false 2rr_ObjectiveHeadingrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Investment Objective</b></p>falsefalsefalsexbrli:stringItemTypestringInvestment Objectives/Goals. Disclose the Fund's investment objectives or goals. A Fund also may identify its type or category (e.g., that it is a Money Market Fund or a balanced fund).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 2 -Subsection a false014false 2rr_ObjectivePrimaryTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">The investment objective of the Gratry International Growth Fund (the &ldquo;Fund&rdquo;) is to seek long-term capital appreciation.</p>falsefalsefalsenonnum:textBlockItemTypenaInvestment Objectives/Goals. Disclose the Fund's investment objectives or goals. A Fund also may identify its type or category (e.g., that it is a Money Market Fund or a balanced fund).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 2 -Subsection a false015false 2rr_ExpenseHeadingrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Fees and Expenses of the Fund</b></p>falsefalsefalsexbrli:stringItemTypestringRisk/Return Summary Fee Table Includes the following information, in plain English under rule 421(d) under the Securities Act, after Item 2 Fees and expenses of the Fund This table describes the fees and expenses that you may pay if you buy and hold shared of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $[_____] in [name of fund family] funds. Shareholder Fees (fees paid directly from your investment) Example This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be You would pay the following expenses if you did not redeem your shares The Example does not reflect sales charges (loads) on reinvested dividends [and other distributions]. If these sales charges (loads) were included, your costs would be higher. Portfolio Turnover The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover may indicate higher transaction costs. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was __% of the average value of its whole portfolio. Instructions. A.3.instructions.6 New Funds. For purposes of this Item, a "New Fund" is a Fund that does not include in Form N-1A financial statements reporting operating results or that includes financial statements for the Fund's initial fiscal year reporting operating results for a period of 6 months or less. The following Instructions apply to New Funds.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 1 -Subparagraph d false016false 2rr_ExpenseNarrativeTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.</p>falsefalsefalsenonnum:textBlockItemTypenaThis table describes the fees and expenses that you may pay if you buy and hold shared of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $[_____] in [name of fund family] funds. Include the narrative explanations in the order indicated. A Fund may modify the narrative explanations if the explanation contains comparable information to that shown. The narrative explanation regarding sales charge discounts is only required by a Fund that offers such discounts and should specify the minimum level of investment required to qualify for a discount. Modify the narrative explanation to state that Fund shares are sold on a national securities exchange at the end of the time periods indicated, and that brokerage commissions for buying and selling Fund shares through a broker are not reflected.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 1 -Subparagraph b false017false 2rr_ShareholderFeesCaptionrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Shareholder Fees</b><br><i>(fees paid directly from your investment)</i></p>falsefalsefalsexbrli:stringItemTypestringShareholder Fees (fees paid directly from your investment).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 false018false 2rr_OperatingExpensesCaptionrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Annual Fund Operating Expenses</b><br><i>(expenses that you pay each year as a percentage of the value of your investment)</i></p>falsefalsefalsexbrli:stringItemTypestringAnnual Fund Operating Expenses (ongoing expenses that you pay each year as a percentage of the value of your investment)Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 7 false019false 2rr_FeeWaiverOrReimbursementOverAssetsDateOfTerminationrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse002014-09-30falsefalsefalsexbrli:stringItemTypestringThis element represents the date of expected termination of any expense reimbursement or fee waiver arrangements that reduce any Fund operating expenses (SEC Form N-1A 2006-09-14 A.3.table.1.11 Total Annual Fund Operating Expenses A.3.instructions.3.e).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph e false020false 2rr_PortfolioTurnoverHeadingrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Portfolio Turnover</b></p>falsefalsefalsexbrli:stringItemTypestringDisclose the portfolio turnover rate provided in response to Item 14(a) for the most recent fiscal year (or for such shorter period as the Fund has been in operation). Disclose the period for which the information is provided if less than a full fiscal year. A Fund that is a Money Market Fund may omit the portfolio turnover information required by this Item.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 5 false021false 2rr_PortfolioTurnoverTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">The Fund pays transaction costs, such as commissions, when it buys and sells securities (or &ldquo;turns over&rdquo; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund&rsquo;s performance. The Fund is newly-created and, as a result, does not yet have a portfolio turnover rate.</p>falsefalsefalsenonnum:textBlockItemTypenaDisclose the portfolio turnover rate provided in response to Item 14(a) for the most recent fiscal year (or for such shorter period as the Fund has been in operation). Disclose the period for which the information is provided if less than a full fiscal year. A Fund that is a Money Market Fund may omit the portfolio turnover information required by this Item.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection example -Paragraph 3 false022false 2rr_OtherExpensesNewFundBasedOnEstimatesrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00&ldquo;Other expenses&rdquo; have been estimated for the current fiscal year.falsefalsefalsexbrli:stringItemTypestringThis element represents the disclosure for new funds that "Other Expenses" are based on estimated amounts for the current fiscal year.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 6 -Subparagraph a false023false 2rr_ExpenseExampleHeadingrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><i><b><u>Example</u></b></i></p>falsefalsefalsexbrli:stringItemTypestringHeading for Expense Example.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 4 false024false 2rr_ExpenseExampleNarrativeTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund&rsquo;s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</p>falsefalsefalsenonnum:textBlockItemTypenaThe Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection example -Paragraph 1 -Subparagraph 1 false025false 2rr_StrategyHeadingrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Principal Investment Strategies</b></p>falsefalsefalsexbrli:stringItemTypestringPrincipal investment strategies of the Fund. Summarize how the Fund intends to achieve its investment objectives by identifying the Fund's principal investment strategies (including the type or types of securities in which the Fund invests or will invest principally) and any policy to concentrate in securities of issuers in a particular industry or group of industries.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection a false026false 2rr_StrategyNarrativeTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">Under normal circumstances, the Fund will invest at least 75% of its net assets in equity securities of non-U.S. domiciled companies or depository receipts of non-U.S. domiciled companies. Although the Fund may invest in any size companies, investments will generally be in large capitalization multinational companies. The Fund&rsquo;s advisor considers large capitalization companies to be those with market capitalization of $10 billion or higher at the time of investment. However, on occasion, the Fund may invest in companies with a market capitalization below $10 billion. The Fund invests primarily in equity securities of non-U.S. domiciled companies located in developed countries but may also invest in companies located in emerging market countries. The Fund may also invest in exchange-traded funds ("ETFs").</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">The Fund&rsquo;s investment strategy will typically be implemented by investing in the American Depository Receipts (&ldquo;ADRs&rdquo;) of non-U.S. companies. ADRs are negotiable certificates evidencing ownership of shares of foreign issuers and are alternatives to directly purchasing the underlying foreign securities in their national markets and currencies. The use of ADR&rsquo;s avoids the need for a global custodian and eliminates foreign currency exchange transactions that would otherwise be required to buy and sell the ordinary shares of companies in their local markets. The Fund generally will invest in securities of companies located in at least three different countries.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">In investing the Fund's assets, the Fund&rsquo;s advisor employs an active fundamental investment process to identify companies that it believes exhibit sound financial characteristics and are run by proven management teams. On an ongoing basis, the Fund&rsquo;s advisor employs a top-down macroeconomic analysis on each country in the investable universe, as defined from time to time. The Fund&rsquo;s advisor&rsquo;s &ldquo;top-down&rdquo; views are implemented with a fundamental bottom-up security selection process, whereby the Fund&rsquo;s advisor seeks to invest in companies that it believes to exhibit superior growth metrics, sound financial characteristics, and reasonable stock prices relative to perceived growth prospects at the time of purchase. The Fund&rsquo;s advisor incorporates a growth orientation to seek to identify securities of high quality companies trading at reasonable values compared to their future earnings potential. In constructing the Fund&rsquo;s portfolio, the Fund&rsquo;s advisor broadly diversifies investments across countries, sectors, and companies.</p>falsefalsefalsenonnum:textBlockItemTypenaPrincipal investment strategies of the Fund. Summarize how the Fund intends to achieve its investment objectives by identifying the Fund's principal investment strategies (including the type or types of securities in which the Fund invests or will invest principally) and any policy to concentrate in securities of issuers in a particular industry or group of industries.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection a false027false 2rr_RiskHeadingrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Principal Risks of Investing</b></p>falsefalsefalsexbrli:stringItemTypestringNarrative Risk Disclosure.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 1 false028false 2rr_RiskNarrativeTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">The Fund&rsquo;s principal risks are mentioned below. Before you decide whether to invest in the Fund, carefully consider these risk factors and special considerations associated with investing in the Fund, which may cause investors to lose money.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Market Risk. </b>Market risk is the risk that the Fund&rsquo;s share price may be affected by a sudden decline in the market value of an investment, or by an overall decline in the stock market due to, among other things, real or perceived adverse economic conditions, changes in general outlook for corporate earnings, changes in interest or currency rates or adverse investor sentiment generally.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Equity Securities Risk</b>. Investment in equity securities involves substantial risks and may be subject to wide and sudden fluctuations in market value, with a resulting fluctuation in the amount of profits and losses due to general market and economic conditions or factors relating to specific companies in which the Fund invests.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Foreign Securities Risk. </b>The prices of foreign securities may be more volatile than those of U.S. securities because of economic and social conditions abroad, political developments, and changes in the regulatory environment of foreign countries. In addition, changes in exchange rates and interest rates may adversely affect the value of the Fund&rsquo;s foreign investments. Foreign companies are generally subject to different legal and accounting standards than U.S. companies, and foreign financial intermediaries may be subject to less supervision and regulation than U.S. financial firms. The Fund&rsquo;s investments in ADRs are subject to these risks, even though ADRs are denominated in U.S. dollars, because changes in currency and exchange rates affect the values of the issuers of ADRs. In addition, the underlying issuers of certain depository receipts, particularly unsponsored or unregistered depository receipts, are under no obligation to distribute shareholder communications to the holders of such receipts, or to pass through to them any voting rights with respect to the deposited securities.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Currency Risk. </b>Foreign securities that trade in, and receive revenues in, foreign currencies are subject to the risk that those currencies may decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar may decline in value relative to the currency being hedged.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Emerging Market Risk.</b> The Fund&rsquo;s investments in foreign issuers in developing or emerging market countries involve exposure to changes in economic and political factors. The economies of most emerging market countries are in the infancy stage of capital market development. As a result, their economic systems are still evolving and their political systems are typically less stable than those in developed economies. Emerging market countries often suffer from currency devaluation and higher rates of inflation.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Growth-Oriented Investment Strategies Risk</b>. Growth funds generally focus on stocks of companies believed to have above-average potential for growth in revenue and earnings. Growth stock prices frequently reflect projections of future earnings or revenues, and if earnings growth expectations aren&rsquo;t met their valuations may return to more typical norms, causing their stock prices to fall.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Small- and Mid-Cap Company Risk.</b> The securities of small- or mid-capitalization companies may be subject to more abrupt or erratic market movements and may have lower trading volumes or more erratic trading than securities of larger companies or the market averages in general. In addition, such companies typically are subject to a greater degree of change in earnings and business prospects than are larger, more established companies.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>ETF Risk.</b> ETFs typically trade on securities exchanges and their shares may, at times, trade at a premium or discount to their net asset values. In addition, an ETF may not replicate exactly the performance of the benchmark index it seeks to track for a number of reasons, including transaction costs incurred by the ETF, the temporary unavailability of certain index securities in the secondary market or discrepancies between the ETF and the index with respect to the weighting of securities or the number of securities held. Investing in ETFs, which are investment companies, may involve duplication of advisory fees and certain other expenses.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Management Risk. </b>The Fund is subject to management risk because it is an actively managed portfolio. The Fund&rsquo;s advisor applies investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these will produce the desired results.</p>falsefalsefalsenonnum:textBlockItemTypenaNarrative Risk Disclosure. A Fund may, in responding to this Item, describe the types of investors for whom the Fund is intended or the types of investment goals that may be consistent with an investment in the Fund.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 1 -Subparagraph i -Clause instruction false029false 2rr_RiskLoseMoneyrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Before you decide whether to invest in the Fund, carefully consider these risk factors and special considerations associated with investing in the Fund, which may cause investors to lose money.falsefalsefalsexbrli:stringItemTypestringSummarize the principal risks of investing in the Fund, including the risks to which the Fund's portfolio as a whole is subject and the circumstances reasonably likely to affect adversely the Fund's net asset value, yield, and total return. Unless the Fund is a Money Market Fund, disclose that loss of money is a risk of investing in the Fund. A Fund may, in responding to this Item, describe the types of investors for whom the Fund is intended or the types of investment goals that may be consistent with an investment in the Fund.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 1 -Subparagraph i false030false 2rr_BarChartAndPerformanceTableHeadingrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Performance</b></p>falsefalsefalsexbrli:stringItemTypestringRisk/Return Bar Chart and Table.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 false031false 2rr_PerformanceNarrativeTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">The Fund is new and does not have a full calendar year performance record to compare against other mutual funds or broad measures of securities market performance such as indices. Performance information will be available after the Fund has been in operation for one calendar year.</p>falsefalsefalsenonnum:textBlockItemTypenaRisk/Return Bar Chart and Table.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 false032false 2rr_PerformanceOneYearOrLessrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00The Fund is new and does not have a full calendar year performance record to compare against other mutual funds or broad measures of securities market performance such as indices.falsefalsefalsexbrli:stringItemTypestringFor a Fund that provides annual total returns for only one calendar year or for a Fund that does not include the bar chart because it does not have annual returns for a full calendar year, modify, as appropriate, the narrative explanation required by stating that the information gives some indication of the risks of an investment in the Fund by comparing the Fund's performance with a broad measure of market performance). Provide a brief explanation of how the information illustrates the variability of the Fund's returns (e.g., by stating that the information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing how the Fund's average annual returns for 1, 5, and 10 years compare with those of a broad measure of market performance). Provide a statement to the effect that the Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 -Subparagraph i Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 -Subparagraph instructions -Clause 1 -Exhibit b false033false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse3false USDtruefalse$imstgratry_S000041245_C000127895http://www.sec.gov/CIK0001318342duration2013-06-28T00:00:002013-06-28T00:00:00falsefalseGratry International Growth Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldiimstgratry_S000041245Memberdei_LegalEntityAxisexplicitMemberfalsefalseInvestor Classrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldiimstgratry_C000127895Memberrr_ProspectusShareClassAxisexplicitMemberRatioStandardhttp://www.xbrl.org/2003/instancepure0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse034true 1rr_RiskReturnAbstractrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse035false 2rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPricerr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue00falsefalsefalserr:NonNegativePure4TypepureMaximum Deferred Sales Charge (Load) (as a percentage of ____) A.3.instructions.2.a.i "Maximum Deferred Sales Charge (Load)" includes the maximum total deferred sales charge (load) payable upon redemption, in installments, or both, expressed as a percentage of the amount or amounts stated in response to Item 7(a), except that, for a sales charge (load) based on net asset value at the time of purchase, show the sales charge (load) as a percentage of the offering price at the time of purchase. A Fund may include in a footnote to the table, if applicable, a tabular presentation showing the amount of deferred sales charges (loads) over time or a narrative explanation of the sales charges (loads) (e.g., __% in the first year after purchase, declining to __% in the __ year and eliminated thereafter). A.3.instructions.2.a.ii If more than one type of sales charge (load) is imposed (e.g., a deferred sales charge (load) and a front-end sales charge (load)), the first caption in the table should read "Maximum Sales Charge (Load)" and show the maximum cumulative percentage. Show the percentage amounts and the terms of each sales charge (load) comprising that figure on separate lines below.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 1 false036false 2rr_MaximumDeferredSalesChargeOverOfferingPricerr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue00falsefalsefalserr:NonNegativePure4TypepureMaximum Deferred Sales Charge (Load) (as a percentage of ____) A.3.instructions.2.a.i "Maximum Deferred Sales Charge (Load)" includes the maximum total deferred sales charge (load) payable upon redemption, in installments, or both, expressed as a percentage of the amount or amounts stated in response to Item 7(a), except that, for a sales charge (load) based on net asset value at the time of purchase, show the sales charge (load) as a percentage of the offering price at the time of purchase. A Fund may include in a footnote to the table, if applicable, a tabular presentation showing the amount of deferred sales charges (loads) over time or a narrative explanation of the sales charges (loads) (e.g., __% in the first year after purchase, declining to __% in the __ year and eliminated thereafter). A.3.instructions.2.a.ii If more than one type of sales charge (load) is imposed (e.g., a deferred sales charge (load) and a front-end sales charge (load)), the first caption in the table should read "Maximum Sales Charge (Load)" and show the maximum cumulative percentage. Show the percentage amounts and the terms of each sales charge (load) comprising that figure on separate lines below.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 2 -Subparagraph a -Clause i false037false 2rr_RedemptionFeeOverRedemptionrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue-0.01-0.01falsefalsefalserr:NonPositivePure4Typepure"Redemption Fee" (as a percentage of amount redeemed, if applicable) If the Fund is an Exchange-Traded Fund and issues or redeems shares in creation units of not less than 25,000 shares each, exclude any fees charged for the purchase and redemption of the Fund's creation units. "Redemption Fee" includes a fee charged for any redemption of the Fund's shares, but does not include a deferred sales charge (load) imposed upon redemption.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 2 -Subparagraph b false038false 2imstgratry_WireFeeimstgratry_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse20.0020.00USD$falsetruefalserr:NonNegativeMonetaryTypemonetaryNo authoritative reference available.No definition available.false239false 2imstgratry_CheckFeeimstgratry_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse15.0015.00USD$falsefalsefalserr:NonNegativeMonetaryTypemonetaryNo authoritative reference available.No definition available.false240false 2rr_ShareholderFeeOtherrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue15.0015.00USD$falsefalsefalserr:NonNegativeMonetaryTypemonetaryOther ExpensesReference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 10 false241false 2rr_ManagementFeesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.0070.007falsefalsefalserr:NonNegativePure4TypepureManagement Fees include investment advisory fees (including any fees based on the Fund's performance), any other management fees payable to the investment adviser or its affiliates, and administrative fees payable to the investment adviser or its affiliates that are not included as "Other Expenses."Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph a false042false 2rr_DistributionAndService12b1FeesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00250.0025falsefalsefalserr:NonNegativePure4TypepureDistribution [and/or Service] (12b-1) Fees" include all distribution or other expenses incurred during the most recent fiscal year under a plan adopted pursuant to rule 12b-1 [17 CFR 270.12b-1]. Under an appropriate caption or a subcaption of "Other Expenses," disclose the amount of any distribution or similar expenses deducted from the Fund's assets other than pursuant to a rule 12b-1 plan.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 9 false043false 2rr_OtherExpensesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.01020.0102[1]falsefalsefalserr:NonNegativePure4Typepure"Other Expenses" include all expenses not otherwise disclosed in the table that are deducted from the Fund's assets or charged to all shareholder accounts. The amount of expenses deducted from the Fund's assets are the amounts shown as expenses in the Fund's statement of operations (including increases resulting from complying with paragraph 2(g) of rule 6-07 of Regulation S-X [17 CFR 210.6-07]). "Other Expenses" do not include extraordinary expenses as determined under generally accepted accounting principles (see Accounting Principles Board Opinion No. 30). If extraordinary expenses were incurred that materially affected the Fund's "Other Expenses," disclose in a footnote to the table what "Other Expenses" would have been had the extraordinary expenses been included.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph c -Clause i false044false 2rr_ExpensesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.01970.0197falsefalsefalserr:NonNegativePure4TypepureTotal Annual Fund Operating Expenses. If the Fund is a Feeder Fund, reflect the aggregate expenses of the Feeder Fund and the Master Fund in a single fee table using the captions provided. In a footnote to the fee table, state that the table and Example reflect the expenses of both the Feeder and Master Funds. If the prospectus offers more than one Class of a Multiple Class Fund or more than one Feeder Fund that invests in the same Master Fund, provide a separate response for each Class or Feeder Fund. Base the percentages of "Annual Fund Operating Expenses" on amounts incurred during the Fund's most recent fiscal year, but include in expenses amounts that would have been incurred absent expense reimbursement or fee waiver arrangements. If the Fund has changed its fiscal year and, as a result, the most recent fiscal year is less than three months, use the fiscal year prior to the most recent fiscal year as the basis for determining "Annual Fund Operating Expenses."Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph d false045false 2rr_FeeWaiverOrReimbursementOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue-0.0052-0.0052[2]falsefalsefalserr:NonPositivePure4TypepureTotal Annual Fund Operating Expenses. If there were expense reimbursement or fee waiver arrangements that reduced any Fund operating expenses and will continue to reduce them for no less than one year from the effective date of the Fund's registration statement, a Fund may add two captions to the table one caption showing the amount of the expense reimbursement or fee waiver, and a second caption showing the Fund's net expenses after subtracting the fee reimbursement or expense waiver from the total fund operating expenses. The Fund should place these additional captions directly below the "Total Annual Fund Operating Expenses" caption of the table and should use appropriate descriptive captions, such as "Fee Waiver [and/or Expense Reimbursement]" and "Total Annual Fund Operating Expenses After Fee Waiver [and/or Expense Reimbursement]," respectively. If the Fund provides this disclosure, also disclose the period for which the expense reimbursement or fee waiver arrangement is expected to continue, and briefly describe who can terminate the arrangement and under what circumstances.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 11 false046false 2rr_NetExpensesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.01450.0145falsefalsefalserr:NonNegativePure4TypepureTotal Annual Fund Operating Expenses.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 11 false047false 2rr_ExpenseExampleYear01rr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue148148USD$falsefalsefalserr:NonNegativeMonetaryTypemonetaryThe Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 4 false248false 2rr_ExpenseExampleYear03rr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue568568USD$falsefalsefalserr:NonNegativeMonetaryTypemonetaryThe Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection example -Paragraph 1 -Subparagraph 2 false249false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse4false USDtruefalse$imstgratry_S000041245_C000127894http://www.sec.gov/CIK0001318342duration2013-06-28T00:00:002013-06-28T00:00:00falsefalseGratry International Growth Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldiimstgratry_S000041245Memberdei_LegalEntityAxisexplicitMemberfalsefalseInstitutional Classrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldiimstgratry_C000127894Memberrr_ProspectusShareClassAxisexplicitMemberRatioStandardhttp://www.xbrl.org/2003/instancepure0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse050true 1rr_RiskReturnAbstractrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse051false 2dei_TradingSymboldei_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00GGIGXfalsefalsefalsexbrli:normalizedStringItemTypenormalizedstringTrading symbol of an instrument as listed on an exchange.No definition available.false052false 2rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPricerr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue00falsefalsefalserr:NonNegativePure4TypepureMaximum Deferred Sales Charge (Load) (as a percentage of ____) A.3.instructions.2.a.i "Maximum Deferred Sales Charge (Load)" includes the maximum total deferred sales charge (load) payable upon redemption, in installments, or both, expressed as a percentage of the amount or amounts stated in response to Item 7(a), except that, for a sales charge (load) based on net asset value at the time of purchase, show the sales charge (load) as a percentage of the offering price at the time of purchase. A Fund may include in a footnote to the table, if applicable, a tabular presentation showing the amount of deferred sales charges (loads) over time or a narrative explanation of the sales charges (loads) (e.g., __% in the first year after purchase, declining to __% in the __ year and eliminated thereafter). A.3.instructions.2.a.ii If more than one type of sales charge (load) is imposed (e.g., a deferred sales charge (load) and a front-end sales charge (load)), the first caption in the table should read "Maximum Sales Charge (Load)" and show the maximum cumulative percentage. Show the percentage amounts and the terms of each sales charge (load) comprising that figure on separate lines below.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 1 false053false 2rr_MaximumDeferredSalesChargeOverOfferingPricerr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue00falsefalsefalserr:NonNegativePure4TypepureMaximum Deferred Sales Charge (Load) (as a percentage of ____) A.3.instructions.2.a.i "Maximum Deferred Sales Charge (Load)" includes the maximum total deferred sales charge (load) payable upon redemption, in installments, or both, expressed as a percentage of the amount or amounts stated in response to Item 7(a), except that, for a sales charge (load) based on net asset value at the time of purchase, show the sales charge (load) as a percentage of the offering price at the time of purchase. A Fund may include in a footnote to the table, if applicable, a tabular presentation showing the amount of deferred sales charges (loads) over time or a narrative explanation of the sales charges (loads) (e.g., __% in the first year after purchase, declining to __% in the __ year and eliminated thereafter). A.3.instructions.2.a.ii If more than one type of sales charge (load) is imposed (e.g., a deferred sales charge (load) and a front-end sales charge (load)), the first caption in the table should read "Maximum Sales Charge (Load)" and show the maximum cumulative percentage. Show the percentage amounts and the terms of each sales charge (load) comprising that figure on separate lines below.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 2 -Subparagraph a -Clause i false054false 2rr_RedemptionFeeOverRedemptionrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue-0.01-0.01falsefalsefalserr:NonPositivePure4Typepure"Redemption Fee" (as a percentage of amount redeemed, if applicable) If the Fund is an Exchange-Traded Fund and issues or redeems shares in creation units of not less than 25,000 shares each, exclude any fees charged for the purchase and redemption of the Fund's creation units. "Redemption Fee" includes a fee charged for any redemption of the Fund's shares, but does not include a deferred sales charge (load) imposed upon redemption.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 2 -Subparagraph b false055false 2imstgratry_WireFeeimstgratry_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse20.0020.00USD$falsefalsefalserr:NonNegativeMonetaryTypemonetaryNo authoritative reference available.No definition available.false256false 2imstgratry_CheckFeeimstgratry_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse15.0015.00USD$falsefalsefalserr:NonNegativeMonetaryTypemonetaryNo authoritative reference available.No definition available.false257false 2rr_ShareholderFeeOtherrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue15.0015.00USD$falsefalsefalserr:NonNegativeMonetaryTypemonetaryOther ExpensesReference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 10 false258false 2rr_ManagementFeesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.0070.007falsefalsefalserr:NonNegativePure4TypepureManagement Fees include investment advisory fees (including any fees based on the Fund's performance), any other management fees payable to the investment adviser or its affiliates, and administrative fees payable to the investment adviser or its affiliates that are not included as "Other Expenses."Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph a false059false 2rr_DistributionAndService12b1FeesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue00falsefalsefalserr:NonNegativePure4TypepureDistribution [and/or Service] (12b-1) Fees" include all distribution or other expenses incurred during the most recent fiscal year under a plan adopted pursuant to rule 12b-1 [17 CFR 270.12b-1]. Under an appropriate caption or a subcaption of "Other Expenses," disclose the amount of any distribution or similar expenses deducted from the Fund's assets other than pursuant to a rule 12b-1 plan.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 9 false060false 2rr_OtherExpensesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.01020.0102[1]falsefalsefalserr:NonNegativePure4Typepure"Other Expenses" include all expenses not otherwise disclosed in the table that are deducted from the Fund's assets or charged to all shareholder accounts. The amount of expenses deducted from the Fund's assets are the amounts shown as expenses in the Fund's statement of operations (including increases resulting from complying with paragraph 2(g) of rule 6-07 of Regulation S-X [17 CFR 210.6-07]). "Other Expenses" do not include extraordinary expenses as determined under generally accepted accounting principles (see Accounting Principles Board Opinion No. 30). If extraordinary expenses were incurred that materially affected the Fund's "Other Expenses," disclose in a footnote to the table what "Other Expenses" would have been had the extraordinary expenses been included.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph c -Clause i false061false 2rr_ExpensesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.01720.0172falsefalsefalserr:NonNegativePure4TypepureTotal Annual Fund Operating Expenses. If the Fund is a Feeder Fund, reflect the aggregate expenses of the Feeder Fund and the Master Fund in a single fee table using the captions provided. In a footnote to the fee table, state that the table and Example reflect the expenses of both the Feeder and Master Funds. If the prospectus offers more than one Class of a Multiple Class Fund or more than one Feeder Fund that invests in the same Master Fund, provide a separate response for each Class or Feeder Fund. Base the percentages of "Annual Fund Operating Expenses" on amounts incurred during the Fund's most recent fiscal year, but include in expenses amounts that would have been incurred absent expense reimbursement or fee waiver arrangements. If the Fund has changed its fiscal year and, as a result, the most recent fiscal year is less than three months, use the fiscal year prior to the most recent fiscal year as the basis for determining "Annual Fund Operating Expenses."Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph d false062false 2rr_FeeWaiverOrReimbursementOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue-0.0052-0.0052[2]falsefalsefalserr:NonPositivePure4TypepureTotal Annual Fund Operating Expenses. If there were expense reimbursement or fee waiver arrangements that reduced any Fund operating expenses and will continue to reduce them for no less than one year from the effective date of the Fund's registration statement, a Fund may add two captions to the table one caption showing the amount of the expense reimbursement or fee waiver, and a second caption showing the Fund's net expenses after subtracting the fee reimbursement or expense waiver from the total fund operating expenses. The Fund should place these additional captions directly below the "Total Annual Fund Operating Expenses" caption of the table and should use appropriate descriptive captions, such as "Fee Waiver [and/or Expense Reimbursement]" and "Total Annual Fund Operating Expenses After Fee Waiver [and/or Expense Reimbursement]," respectively. If the Fund provides this disclosure, also disclose the period for which the expense reimbursement or fee waiver arrangement is expected to continue, and briefly describe who can terminate the arrangement and under what circumstances.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 11 false063false 2rr_NetExpensesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.0120.012falsefalsefalserr:NonNegativePure4TypepureTotal Annual Fund Operating Expenses.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 11 false064false 2rr_ExpenseExampleYear01rr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue122122USD$falsefalsefalserr:NonNegativeMonetaryTypemonetaryThe Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 4 false265false 2rr_ExpenseExampleYear03rr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue491491USD$falsetruefalserr:NonNegativeMonetaryTypemonetaryThe Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection example -Paragraph 1 -Subparagraph 2 false21"Other expenses" have been estimated for the current fiscal year. 2The Fund's advisor has contractually agreed to waive its fees and/or absorb expenses of the Fund to ensure that total annual fund operating expenses (excluding, as applicable, taxes, leverage interest, brokerage commissions, dividend expenses on short sales, acquired fund fees and expenses as determined in accordance with Form N-1A, expenses incurred in connection with any merger or reorganization, or extraordinary expenses such as litigation expenses) do not exceed 1.45 % and 1.20 % of the average daily net assets of the Fund's Investor Class and Institutional Class shares, respectively. This agreement is in effect until September 30, 2014, and may be terminated before that date only by the Trust's Board of Trustees. 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Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Document Type dei_DocumentType 485BPOS
Period End Date dei_DocumentPeriodEndDate Jun. 28, 2013
Registrant Name dei_EntityRegistrantName Investment Managers Series Trust
CIK dei_EntityCentralIndexKey 0001318342
Amendment dei_AmendmentFlag false
Creation Date dei_DocumentCreationDate Jun. 28, 2013
Effective Date dei_DocumentEffectiveDate Jun. 28, 2013
Prospectus Date rr_ProspectusDate Jun. 28, 2013
Gratry International Growth Fund
 
Risk/Return: rr_RiskReturnAbstract  
Risk/Return rr_RiskReturnHeading

SUMMARY SECTION


 

Gratry International Growth Fund

Investment objective: rr_ObjectiveHeading

Investment Objective

Investment objective rr_ObjectivePrimaryTextBlock

The investment objective of the Gratry International Growth Fund (the “Fund”) is to seek long-term capital appreciation.

Fees and expenses of the fund: rr_ExpenseHeading

Fees and Expenses of the Fund

Fees and expenses of the fund, narrative rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Shareholder fees, caption rr_ShareholderFeesCaption

Shareholder Fees
(fees paid directly from your investment)

Annual fund operating expenses, heading rr_OperatingExpensesCaption

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Date Of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination 2014-09-30
Portfolio turnover, heading rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio turnover, narrative rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. The Fund is newly-created and, as a result, does not yet have a portfolio turnover rate.

Other Expenses, New Fund, Based on Estimates rr_OtherExpensesNewFundBasedOnEstimates “Other expenses” have been estimated for the current fiscal year.
Example, heading rr_ExpenseExampleHeading

Example

Expense Example, Narrative rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy, Heading rr_StrategyHeading

Principal Investment Strategies

Strategy, Narrative rr_StrategyNarrativeTextBlock

Under normal circumstances, the Fund will invest at least 75% of its net assets in equity securities of non-U.S. domiciled companies or depository receipts of non-U.S. domiciled companies. Although the Fund may invest in any size companies, investments will generally be in large capitalization multinational companies. The Fund’s advisor considers large capitalization companies to be those with market capitalization of $10 billion or higher at the time of investment. However, on occasion, the Fund may invest in companies with a market capitalization below $10 billion. The Fund invests primarily in equity securities of non-U.S. domiciled companies located in developed countries but may also invest in companies located in emerging market countries. The Fund may also invest in exchange-traded funds ("ETFs").

 

The Fund’s investment strategy will typically be implemented by investing in the American Depository Receipts (“ADRs”) of non-U.S. companies. ADRs are negotiable certificates evidencing ownership of shares of foreign issuers and are alternatives to directly purchasing the underlying foreign securities in their national markets and currencies. The use of ADR’s avoids the need for a global custodian and eliminates foreign currency exchange transactions that would otherwise be required to buy and sell the ordinary shares of companies in their local markets. The Fund generally will invest in securities of companies located in at least three different countries.

 

In investing the Fund's assets, the Fund’s advisor employs an active fundamental investment process to identify companies that it believes exhibit sound financial characteristics and are run by proven management teams. On an ongoing basis, the Fund’s advisor employs a top-down macroeconomic analysis on each country in the investable universe, as defined from time to time. The Fund’s advisor’s “top-down” views are implemented with a fundamental bottom-up security selection process, whereby the Fund’s advisor seeks to invest in companies that it believes to exhibit superior growth metrics, sound financial characteristics, and reasonable stock prices relative to perceived growth prospects at the time of purchase. The Fund’s advisor incorporates a growth orientation to seek to identify securities of high quality companies trading at reasonable values compared to their future earnings potential. In constructing the Fund’s portfolio, the Fund’s advisor broadly diversifies investments across countries, sectors, and companies.

Risk, Heading rr_RiskHeading

Principal Risks of Investing

Risk, Narrative rr_RiskNarrativeTextBlock

The Fund’s principal risks are mentioned below. Before you decide whether to invest in the Fund, carefully consider these risk factors and special considerations associated with investing in the Fund, which may cause investors to lose money.

 

Market Risk. Market risk is the risk that the Fund’s share price may be affected by a sudden decline in the market value of an investment, or by an overall decline in the stock market due to, among other things, real or perceived adverse economic conditions, changes in general outlook for corporate earnings, changes in interest or currency rates or adverse investor sentiment generally.

 

Equity Securities Risk. Investment in equity securities involves substantial risks and may be subject to wide and sudden fluctuations in market value, with a resulting fluctuation in the amount of profits and losses due to general market and economic conditions or factors relating to specific companies in which the Fund invests.

 

Foreign Securities Risk. The prices of foreign securities may be more volatile than those of U.S. securities because of economic and social conditions abroad, political developments, and changes in the regulatory environment of foreign countries. In addition, changes in exchange rates and interest rates may adversely affect the value of the Fund’s foreign investments. Foreign companies are generally subject to different legal and accounting standards than U.S. companies, and foreign financial intermediaries may be subject to less supervision and regulation than U.S. financial firms. The Fund’s investments in ADRs are subject to these risks, even though ADRs are denominated in U.S. dollars, because changes in currency and exchange rates affect the values of the issuers of ADRs. In addition, the underlying issuers of certain depository receipts, particularly unsponsored or unregistered depository receipts, are under no obligation to distribute shareholder communications to the holders of such receipts, or to pass through to them any voting rights with respect to the deposited securities.

 

Currency Risk. Foreign securities that trade in, and receive revenues in, foreign currencies are subject to the risk that those currencies may decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar may decline in value relative to the currency being hedged.

 

Emerging Market Risk. The Fund’s investments in foreign issuers in developing or emerging market countries involve exposure to changes in economic and political factors. The economies of most emerging market countries are in the infancy stage of capital market development. As a result, their economic systems are still evolving and their political systems are typically less stable than those in developed economies. Emerging market countries often suffer from currency devaluation and higher rates of inflation.

 

Growth-Oriented Investment Strategies Risk. Growth funds generally focus on stocks of companies believed to have above-average potential for growth in revenue and earnings. Growth stock prices frequently reflect projections of future earnings or revenues, and if earnings growth expectations aren’t met their valuations may return to more typical norms, causing their stock prices to fall.

 

Small- and Mid-Cap Company Risk. The securities of small- or mid-capitalization companies may be subject to more abrupt or erratic market movements and may have lower trading volumes or more erratic trading than securities of larger companies or the market averages in general. In addition, such companies typically are subject to a greater degree of change in earnings and business prospects than are larger, more established companies.

 

ETF Risk. ETFs typically trade on securities exchanges and their shares may, at times, trade at a premium or discount to their net asset values. In addition, an ETF may not replicate exactly the performance of the benchmark index it seeks to track for a number of reasons, including transaction costs incurred by the ETF, the temporary unavailability of certain index securities in the secondary market or discrepancies between the ETF and the index with respect to the weighting of securities or the number of securities held. Investing in ETFs, which are investment companies, may involve duplication of advisory fees and certain other expenses.

 

Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. The Fund’s advisor applies investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these will produce the desired results.

May Lose Money rr_RiskLoseMoney Before you decide whether to invest in the Fund, carefully consider these risk factors and special considerations associated with investing in the Fund, which may cause investors to lose money.
Bar Chart and Performance Table, Heading rr_BarChartAndPerformanceTableHeading

Performance

Performance, Narrative rr_PerformanceNarrativeTextBlock

The Fund is new and does not have a full calendar year performance record to compare against other mutual funds or broad measures of securities market performance such as indices. Performance information will be available after the Fund has been in operation for one calendar year.

Performance, One Year or Less rr_PerformanceOneYearOrLess The Fund is new and does not have a full calendar year performance record to compare against other mutual funds or broad measures of securities market performance such as indices.
Gratry International Growth Fund | Investor Class
 
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) imposed on purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum deferred sales charge (load) (as a percentage of the lesser of the value redeemed or the amount invested) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Redemption fee if redeemed within 30 days of purchase (as a percentage of amount redeemed) rr_RedemptionFeeOverRedemption (1.00%)
Wire fee imstgratry_WireFee $ 20.00
Overnight check delivery fee imstgratry_CheckFee 15.00
Retirement account fees (annual maintenance and full redemption requests) rr_ShareholderFeeOther 15.00
Management fees rr_ManagementFeesOverAssets 0.70%
Distribution (Rule 12b-1) fee rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses (includes shareholder service fee of up to 0.10%) rr_OtherExpensesOverAssets 1.02% [1]
Total annual fund operating expenses rr_ExpensesOverAssets 1.97%
Fee waiver and/or expense reimbursements rr_FeeWaiverOrReimbursementOverAssets (0.52%) [2]
Total annual fund operating expenses after fee waiver and/or expense reimbursements rr_NetExpensesOverAssets 1.45%
Expense Example, 1 YEAR rr_ExpenseExampleYear01 148
Expense Example, 3 YEARS rr_ExpenseExampleYear03 568
Gratry International Growth Fund | Institutional Class
 
Risk/Return: rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol GGIGX
Maximum sales charge (load) imposed on purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum deferred sales charge (load) (as a percentage of the lesser of the value redeemed or the amount invested) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Redemption fee if redeemed within 30 days of purchase (as a percentage of amount redeemed) rr_RedemptionFeeOverRedemption (1.00%)
Wire fee imstgratry_WireFee 20.00
Overnight check delivery fee imstgratry_CheckFee 15.00
Retirement account fees (annual maintenance and full redemption requests) rr_ShareholderFeeOther 15.00
Management fees rr_ManagementFeesOverAssets 0.70%
Distribution (Rule 12b-1) fee rr_DistributionAndService12b1FeesOverAssets none
Other expenses (includes shareholder service fee of up to 0.10%) rr_OtherExpensesOverAssets 1.02% [1]
Total annual fund operating expenses rr_ExpensesOverAssets 1.72%
Fee waiver and/or expense reimbursements rr_FeeWaiverOrReimbursementOverAssets (0.52%) [2]
Total annual fund operating expenses after fee waiver and/or expense reimbursements rr_NetExpensesOverAssets 1.20%
Expense Example, 1 YEAR rr_ExpenseExampleYear01 122
Expense Example, 3 YEARS rr_ExpenseExampleYear03 $ 491
[1] "Other expenses" have been estimated for the current fiscal year.
[2] The Fund's advisor has contractually agreed to waive its fees and/or absorb expenses of the Fund to ensure that total annual fund operating expenses (excluding, as applicable, taxes, leverage interest, brokerage commissions, dividend expenses on short sales, acquired fund fees and expenses as determined in accordance with Form N-1A, expenses incurred in connection with any merger or reorganization, or extraordinary expenses such as litigation expenses) do not exceed 1.45 % and 1.20 % of the average daily net assets of the Fund's Investor Class and Institutional Class shares, respectively. This agreement is in effect until September 30, 2014, and may be terminated before that date only by the Trust's Board of Trustees. The Fund's advisor is permitted to seek reimbursement from the Fund, subject to limitations, for fees it waived and Fund expenses it paid for three years from the date of any such waiver or payment.
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Gratry International Growth Fund

SUMMARY SECTION


 

Gratry International Growth Fund

Investment Objective

The investment objective of the Gratry International Growth Fund (the “Fund”) is to seek long-term capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees Gratry International Growth Fund (USD $)
Investor Class
Institutional Class
Maximum sales charge (load) imposed on purchases (as a percentage of offering price) none none
Maximum deferred sales charge (load) (as a percentage of the lesser of the value redeemed or the amount invested) none none
Redemption fee if redeemed within 30 days of purchase (as a percentage of amount redeemed) 1.00% 1.00%
Wire fee 20.00 20.00
Overnight check delivery fee 15.00 15.00
Retirement account fees (annual maintenance and full redemption requests) 15.00 15.00

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses Gratry International Growth Fund
Investor Class
Institutional Class
Management fees 0.70% 0.70%
Distribution (Rule 12b-1) fee 0.25% none
Other expenses (includes shareholder service fee of up to 0.10%) [1] 1.02% 1.02%
Total annual fund operating expenses 1.97% 1.72%
Fee waiver and/or expense reimbursements [2] (0.52%) (0.52%)
Total annual fund operating expenses after fee waiver and/or expense reimbursements 1.45% 1.20%
[1] "Other expenses" have been estimated for the current fiscal year.
[2] The Fund's advisor has contractually agreed to waive its fees and/or absorb expenses of the Fund to ensure that total annual fund operating expenses (excluding, as applicable, taxes, leverage interest, brokerage commissions, dividend expenses on short sales, acquired fund fees and expenses as determined in accordance with Form N-1A, expenses incurred in connection with any merger or reorganization, or extraordinary expenses such as litigation expenses) do not exceed 1.45 % and 1.20 % of the average daily net assets of the Fund's Investor Class and Institutional Class shares, respectively. This agreement is in effect until September 30, 2014, and may be terminated before that date only by the Trust's Board of Trustees. The Fund's advisor is permitted to seek reimbursement from the Fund, subject to limitations, for fees it waived and Fund expenses it paid for three years from the date of any such waiver or payment.

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example Gratry International Growth Fund (USD $)
1 Year
3 Years
Investor Class
148 568
Institutional Class
122 491

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. The Fund is newly-created and, as a result, does not yet have a portfolio turnover rate.

Principal Investment Strategies

Under normal circumstances, the Fund will invest at least 75% of its net assets in equity securities of non-U.S. domiciled companies or depository receipts of non-U.S. domiciled companies. Although the Fund may invest in any size companies, investments will generally be in large capitalization multinational companies. The Fund’s advisor considers large capitalization companies to be those with market capitalization of $10 billion or higher at the time of investment. However, on occasion, the Fund may invest in companies with a market capitalization below $10 billion. The Fund invests primarily in equity securities of non-U.S. domiciled companies located in developed countries but may also invest in companies located in emerging market countries. The Fund may also invest in exchange-traded funds ("ETFs").

 

The Fund’s investment strategy will typically be implemented by investing in the American Depository Receipts (“ADRs”) of non-U.S. companies. ADRs are negotiable certificates evidencing ownership of shares of foreign issuers and are alternatives to directly purchasing the underlying foreign securities in their national markets and currencies. The use of ADR’s avoids the need for a global custodian and eliminates foreign currency exchange transactions that would otherwise be required to buy and sell the ordinary shares of companies in their local markets. The Fund generally will invest in securities of companies located in at least three different countries.

 

In investing the Fund's assets, the Fund’s advisor employs an active fundamental investment process to identify companies that it believes exhibit sound financial characteristics and are run by proven management teams. On an ongoing basis, the Fund’s advisor employs a top-down macroeconomic analysis on each country in the investable universe, as defined from time to time. The Fund’s advisor’s “top-down” views are implemented with a fundamental bottom-up security selection process, whereby the Fund’s advisor seeks to invest in companies that it believes to exhibit superior growth metrics, sound financial characteristics, and reasonable stock prices relative to perceived growth prospects at the time of purchase. The Fund’s advisor incorporates a growth orientation to seek to identify securities of high quality companies trading at reasonable values compared to their future earnings potential. In constructing the Fund’s portfolio, the Fund’s advisor broadly diversifies investments across countries, sectors, and companies.

Principal Risks of Investing

The Fund’s principal risks are mentioned below. Before you decide whether to invest in the Fund, carefully consider these risk factors and special considerations associated with investing in the Fund, which may cause investors to lose money.

 

Market Risk. Market risk is the risk that the Fund’s share price may be affected by a sudden decline in the market value of an investment, or by an overall decline in the stock market due to, among other things, real or perceived adverse economic conditions, changes in general outlook for corporate earnings, changes in interest or currency rates or adverse investor sentiment generally.

 

Equity Securities Risk. Investment in equity securities involves substantial risks and may be subject to wide and sudden fluctuations in market value, with a resulting fluctuation in the amount of profits and losses due to general market and economic conditions or factors relating to specific companies in which the Fund invests.

 

Foreign Securities Risk. The prices of foreign securities may be more volatile than those of U.S. securities because of economic and social conditions abroad, political developments, and changes in the regulatory environment of foreign countries. In addition, changes in exchange rates and interest rates may adversely affect the value of the Fund’s foreign investments. Foreign companies are generally subject to different legal and accounting standards than U.S. companies, and foreign financial intermediaries may be subject to less supervision and regulation than U.S. financial firms. The Fund’s investments in ADRs are subject to these risks, even though ADRs are denominated in U.S. dollars, because changes in currency and exchange rates affect the values of the issuers of ADRs. In addition, the underlying issuers of certain depository receipts, particularly unsponsored or unregistered depository receipts, are under no obligation to distribute shareholder communications to the holders of such receipts, or to pass through to them any voting rights with respect to the deposited securities.

 

Currency Risk. Foreign securities that trade in, and receive revenues in, foreign currencies are subject to the risk that those currencies may decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar may decline in value relative to the currency being hedged.

 

Emerging Market Risk. The Fund’s investments in foreign issuers in developing or emerging market countries involve exposure to changes in economic and political factors. The economies of most emerging market countries are in the infancy stage of capital market development. As a result, their economic systems are still evolving and their political systems are typically less stable than those in developed economies. Emerging market countries often suffer from currency devaluation and higher rates of inflation.

 

Growth-Oriented Investment Strategies Risk. Growth funds generally focus on stocks of companies believed to have above-average potential for growth in revenue and earnings. Growth stock prices frequently reflect projections of future earnings or revenues, and if earnings growth expectations aren’t met their valuations may return to more typical norms, causing their stock prices to fall.

 

Small- and Mid-Cap Company Risk. The securities of small- or mid-capitalization companies may be subject to more abrupt or erratic market movements and may have lower trading volumes or more erratic trading than securities of larger companies or the market averages in general. In addition, such companies typically are subject to a greater degree of change in earnings and business prospects than are larger, more established companies.

 

ETF Risk. ETFs typically trade on securities exchanges and their shares may, at times, trade at a premium or discount to their net asset values. In addition, an ETF may not replicate exactly the performance of the benchmark index it seeks to track for a number of reasons, including transaction costs incurred by the ETF, the temporary unavailability of certain index securities in the secondary market or discrepancies between the ETF and the index with respect to the weighting of securities or the number of securities held. Investing in ETFs, which are investment companies, may involve duplication of advisory fees and certain other expenses.

 

Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. The Fund’s advisor applies investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these will produce the desired results.

Performance

The Fund is new and does not have a full calendar year performance record to compare against other mutual funds or broad measures of securities market performance such as indices. Performance information will be available after the Fund has been in operation for one calendar year.

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Shareholder Fees (fees paid directly from your investment) Example This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be You would pay the following expenses if you did not redeem your shares The Example does not reflect sales charges (loads) on reinvested dividends [and other distributions]. If these sales charges (loads) were included, your costs would be higher. Portfolio Turnover The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). 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Show the percentage amounts and the terms of each sales charge (load) comprising that figure on separate lines below.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 1 false0 0rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPricerr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue00falsefalsefalse2truetruetrue00falsefalsefalserr:NonNegativePure4TypepureMaximum Deferred Sales Charge (Load) (as a percentage of ____) A.3.instructions.2.a.i "Maximum Deferred Sales Charge (Load)" includes the maximum total deferred sales charge (load) payable upon redemption, in installments, or both, expressed as a percentage of the amount or amounts stated in response to Item 7(a), except that, for a sales charge (load) based on net asset value at the time of purchase, show the sales charge (load) as a percentage of the offering price at the time of purchase. A Fund may include in a footnote to the table, if applicable, a tabular presentation showing the amount of deferred sales charges (loads) over time or a narrative explanation of the sales charges (loads) (e.g., __% in the first year after purchase, declining to __% in the __ year and eliminated thereafter). A.3.instructions.2.a.ii If more than one type of sales charge (load) is imposed (e.g., a deferred sales charge (load) and a front-end sales charge (load)), the first caption in the table should read "Maximum Sales Charge (Load)" and show the maximum cumulative percentage. Show the percentage amounts and the terms of each sales charge (load) comprising that figure on separate lines below.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 1 false02falseRowprimaryElement*4false 2rr_MaximumDeferredSalesChargeOverOfferingPricerr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalserr:NonNegativePure4TypepureMaximum Deferred Sales Charge (Load) (as a percentage of ____) A.3.instructions.2.a.i "Maximum Deferred Sales Charge (Load)" includes the maximum total deferred sales charge (load) payable upon redemption, in installments, or both, expressed as a percentage of the amount or amounts stated in response to Item 7(a), except that, for a sales charge (load) based on net asset value at the time of purchase, show the sales charge (load) as a percentage of the offering price at the time of purchase. A Fund may include in a footnote to the table, if applicable, a tabular presentation showing the amount of deferred sales charges (loads) over time or a narrative explanation of the sales charges (loads) (e.g., __% in the first year after purchase, declining to __% in the __ year and eliminated thereafter). A.3.instructions.2.a.ii If more than one type of sales charge (load) is imposed (e.g., a deferred sales charge (load) and a front-end sales charge (load)), the first caption in the table should read "Maximum Sales Charge (Load)" and show the maximum cumulative percentage. Show the percentage amounts and the terms of each sales charge (load) comprising that figure on separate lines below.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 2 -Subparagraph a -Clause i false0 0rr_MaximumDeferredSalesChargeOverOfferingPricerr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue00falsefalsefalse2truetruetrue00falsefalsefalserr:NonNegativePure4TypepureMaximum Deferred Sales Charge (Load) (as a percentage of ____) A.3.instructions.2.a.i "Maximum Deferred Sales Charge (Load)" includes the maximum total deferred sales charge (load) payable upon redemption, in installments, or both, expressed as a percentage of the amount or amounts stated in response to Item 7(a), except that, for a sales charge (load) based on net asset value at the time of purchase, show the sales charge (load) as a percentage of the offering price at the time of purchase. A Fund may include in a footnote to the table, if applicable, a tabular presentation showing the amount of deferred sales charges (loads) over time or a narrative explanation of the sales charges (loads) (e.g., __% in the first year after purchase, declining to __% in the __ year and eliminated thereafter). A.3.instructions.2.a.ii If more than one type of sales charge (load) is imposed (e.g., a deferred sales charge (load) and a front-end sales charge (load)), the first caption in the table should read "Maximum Sales Charge (Load)" and show the maximum cumulative percentage. Show the percentage amounts and the terms of each sales charge (load) comprising that figure on separate lines below.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 2 -Subparagraph a -Clause i false03falseRowprimaryElement*5false 2rr_RedemptionFeeOverRedemptionrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsetruenegatedrr:NonPositivePure4Typepure"Redemption Fee" (as a percentage of amount redeemed, if applicable) If the Fund is an Exchange-Traded Fund and issues or redeems shares in creation units of not less than 25,000 shares each, exclude any fees charged for the purchase and redemption of the Fund's creation units. "Redemption Fee" includes a fee charged for any redemption of the Fund's shares, but does not include a deferred sales charge (load) imposed upon redemption.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 2 -Subparagraph b false0 0rr_RedemptionFeeOverRedemptionrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsetruenegated1truetruetrue0.010.01falsefalsefalse2truetruetrue0.010.01falsefalsefalserr:NonPositivePure4Typepure"Redemption Fee" (as a percentage of amount redeemed, if applicable) If the Fund is an Exchange-Traded Fund and issues or redeems shares in creation units of not less than 25,000 shares each, exclude any fees charged for the purchase and redemption of the Fund's creation units. "Redemption Fee" includes a fee charged for any redemption of the Fund's shares, but does not include a deferred sales charge (load) imposed upon redemption.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 2 -Subparagraph b false04falseRowprimaryElement*6false 2imstgratry_WireFeeimstgratry_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalserr:NonNegativeMonetaryTypemonetaryNo authoritative reference available.No definition available.false2 0imstgratry_WireFeeimstgratry_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse20.0020.00falsefalsefalse2truefalsefalse20.0020.00falsefalsefalserr:NonNegativeMonetaryTypemonetaryNo authoritative reference available.No definition available.false25falseRowprimaryElement*7false 2imstgratry_CheckFeeimstgratry_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalserr:NonNegativeMonetaryTypemonetaryNo authoritative reference available.No definition available.false2 0imstgratry_CheckFeeimstgratry_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse15.0015.00falsefalsefalse2truefalsefalse15.0015.00falsefalsefalserr:NonNegativeMonetaryTypemonetaryNo authoritative reference available.No definition available.false26falseRowprimaryElement*8false 2rr_ShareholderFeeOtherrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalserr:NonNegativeMonetaryTypemonetaryOther ExpensesReference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 10 false2 0rr_ShareholderFeeOtherrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue15.0015.00falsefalsefalse2truefalsetrue15.0015.00falsefalsefalserr:NonNegativeMonetaryTypemonetaryOther ExpensesReference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 10 false2falseShareholder Fees Gratry International Growth Fund (USD $)UnKnownUnKnownUnKnownUnKnownfalsefalsefalseSheet2661026018ColumnperiodPeriod*Columndei_LegalEntityAxisAxisimstgratry_S000041245MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*RowprimaryElement*falsenonnum:textBlockItemTypenaContains a command for the SEC Viewer for the role corresponding to ShareholderFeesData.No definition available.false09false 2rr_OperatingExpensesCaptionrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Annual Fund Operating Expenses</b><br><i>(expenses that you pay each year as a percentage of the value of your investment)</i></p>falsefalsefalsexbrli:stringItemTypestringAnnual Fund Operating Expenses (ongoing expenses that you pay each year as a percentage of the value of your investment)Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 7 false010false 2rr_AnnualFundOperatingExpensesTableTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div style="display: none;"> ~ http://xbrl.sec.gov/rr/role/OperatingExpensesData column dei_LegalEntityAxis compact imstgratry_S000041245Member ~ </div>falsefalse<div style="display: none;"> ~ http://xbrl.sec.gov/rr/role/OperatingExpensesData column dei_LegalEntityAxis compact imstgratry_S000041245Member ~ </div>falsehttp://xbrl.sec.gov/rr/role/OperatingExpensesData020020 - Schedule - Annual Fund Operating Expensestruefalsefalse1falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisimstgratry_S000041245MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2013-06-28T00:00:002013-06-28T00:00:00falsefalseGratry International Growth Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldiimstgratry_S000041245Memberdei_LegalEntityAxisexplicitMemberfalsefalseInvestor Classrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldiimstgratry_C000127895Memberrr_ProspectusShareClassAxisexplicitMemberGratry International Growth FundInvestor ClassRatioStandardhttp://www.xbrl.org/2003/instancepure0Standard0 USDfalsefalseduration2013-06-28T00:00:002013-06-28T00:00:00$2falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisimstgratry_S000041245MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2013-06-28T00:00:002013-06-28T00:00:00falsefalseGratry International Growth Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldiimstgratry_S000041245Memberdei_LegalEntityAxisexplicitMemberfalsefalseInstitutional Classrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldiimstgratry_C000127894Memberrr_ProspectusShareClassAxisexplicitMemberGratry International Growth FundInstitutional ClassRatioStandardhttp://www.xbrl.org/2003/instancepure0Standard0 USDfalsefalseduration2013-06-28T00:00:002013-06-28T00:00:00$1falseRowprimaryElement*3false 2rr_ManagementFeesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalserr:NonNegativePure4TypepureManagement Fees include investment advisory fees (including any fees based on the Fund's performance), any other management fees payable to the investment adviser or its affiliates, and administrative fees payable to the investment adviser or its affiliates that are not included as "Other Expenses."Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph a false0 0rr_ManagementFeesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.0070.007falsefalsefalse2truetruetrue0.0070.007falsefalsefalserr:NonNegativePure4TypepureManagement Fees include investment advisory fees (including any fees based on the Fund's performance), any other management fees payable to the investment adviser or its affiliates, and administrative fees payable to the investment adviser or its affiliates that are not included as "Other Expenses."Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph a false02falseRowprimaryElement*4false 2rr_DistributionAndService12b1FeesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalserr:NonNegativePure4TypepureDistribution [and/or Service] (12b-1) Fees" include all distribution or other expenses incurred during the most recent fiscal year under a plan adopted pursuant to rule 12b-1 [17 CFR 270.12b-1]. Under an appropriate caption or a subcaption of "Other Expenses," disclose the amount of any distribution or similar expenses deducted from the Fund's assets other than pursuant to a rule 12b-1 plan.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 9 false0 0rr_DistributionAndService12b1FeesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00250.0025falsefalsefalse2truetruetrue00falsefalsefalserr:NonNegativePure4TypepureDistribution [and/or Service] (12b-1) Fees" include all distribution or other expenses incurred during the most recent fiscal year under a plan adopted pursuant to rule 12b-1 [17 CFR 270.12b-1]. Under an appropriate caption or a subcaption of "Other Expenses," disclose the amount of any distribution or similar expenses deducted from the Fund's assets other than pursuant to a rule 12b-1 plan.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 9 false03falseRowprimaryElement*5false 2rr_OtherExpensesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalserr:NonNegativePure4Typepure"Other Expenses" include all expenses not otherwise disclosed in the table that are deducted from the Fund's assets or charged to all shareholder accounts. The amount of expenses deducted from the Fund's assets are the amounts shown as expenses in the Fund's statement of operations (including increases resulting from complying with paragraph 2(g) of rule 6-07 of Regulation S-X [17 CFR 210.6-07]). "Other Expenses" do not include extraordinary expenses as determined under generally accepted accounting principles (see Accounting Principles Board Opinion No. 30). If extraordinary expenses were incurred that materially affected the Fund's "Other Expenses," disclose in a footnote to the table what "Other Expenses" would have been had the extraordinary expenses been included.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph c -Clause i false0 0rr_OtherExpensesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse[1]1truetruetrue0.01020.0102falsefalsefalse2truetruetrue0.01020.0102falsefalsefalserr:NonNegativePure4Typepure"Other Expenses" include all expenses not otherwise disclosed in the table that are deducted from the Fund's assets or charged to all shareholder accounts. The amount of expenses deducted from the Fund's assets are the amounts shown as expenses in the Fund's statement of operations (including increases resulting from complying with paragraph 2(g) of rule 6-07 of Regulation S-X [17 CFR 210.6-07]). "Other Expenses" do not include extraordinary expenses as determined under generally accepted accounting principles (see Accounting Principles Board Opinion No. 30). If extraordinary expenses were incurred that materially affected the Fund's "Other Expenses," disclose in a footnote to the table what "Other Expenses" would have been had the extraordinary expenses been included.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph c -Clause i false04falseRowprimaryElement*6false 2rr_ExpensesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalserr:NonNegativePure4TypepureTotal Annual Fund Operating Expenses. If the Fund is a Feeder Fund, reflect the aggregate expenses of the Feeder Fund and the Master Fund in a single fee table using the captions provided. In a footnote to the fee table, state that the table and Example reflect the expenses of both the Feeder and Master Funds. If the prospectus offers more than one Class of a Multiple Class Fund or more than one Feeder Fund that invests in the same Master Fund, provide a separate response for each Class or Feeder Fund. Base the percentages of "Annual Fund Operating Expenses" on amounts incurred during the Fund's most recent fiscal year, but include in expenses amounts that would have been incurred absent expense reimbursement or fee waiver arrangements. If the Fund has changed its fiscal year and, as a result, the most recent fiscal year is less than three months, use the fiscal year prior to the most recent fiscal year as the basis for determining "Annual Fund Operating Expenses."Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph d false0 0rr_ExpensesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.01970.0197falsefalsefalse2truetruetrue0.01720.0172falsefalsefalserr:NonNegativePure4TypepureTotal Annual Fund Operating Expenses. If the Fund is a Feeder Fund, reflect the aggregate expenses of the Feeder Fund and the Master Fund in a single fee table using the captions provided. In a footnote to the fee table, state that the table and Example reflect the expenses of both the Feeder and Master Funds. If the prospectus offers more than one Class of a Multiple Class Fund or more than one Feeder Fund that invests in the same Master Fund, provide a separate response for each Class or Feeder Fund. Base the percentages of "Annual Fund Operating Expenses" on amounts incurred during the Fund's most recent fiscal year, but include in expenses amounts that would have been incurred absent expense reimbursement or fee waiver arrangements. If the Fund has changed its fiscal year and, as a result, the most recent fiscal year is less than three months, use the fiscal year prior to the most recent fiscal year as the basis for determining "Annual Fund Operating Expenses."Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph d false05falseRowprimaryElement*7false 2rr_FeeWaiverOrReimbursementOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalserr:NonPositivePure4TypepureTotal Annual Fund Operating Expenses. If there were expense reimbursement or fee waiver arrangements that reduced any Fund operating expenses and will continue to reduce them for no less than one year from the effective date of the Fund's registration statement, a Fund may add two captions to the table one caption showing the amount of the expense reimbursement or fee waiver, and a second caption showing the Fund's net expenses after subtracting the fee reimbursement or expense waiver from the total fund operating expenses. The Fund should place these additional captions directly below the "Total Annual Fund Operating Expenses" caption of the table and should use appropriate descriptive captions, such as "Fee Waiver [and/or Expense Reimbursement]" and "Total Annual Fund Operating Expenses After Fee Waiver [and/or Expense Reimbursement]," respectively. If the Fund provides this disclosure, also disclose the period for which the expense reimbursement or fee waiver arrangement is expected to continue, and briefly describe who can terminate the arrangement and under what circumstances.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 11 false0 0rr_FeeWaiverOrReimbursementOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse[2]1truetruetrue-0.0052-0.0052falsefalsefalse2truetruetrue-0.0052-0.0052falsefalsefalserr:NonPositivePure4TypepureTotal Annual Fund Operating Expenses. If there were expense reimbursement or fee waiver arrangements that reduced any Fund operating expenses and will continue to reduce them for no less than one year from the effective date of the Fund's registration statement, a Fund may add two captions to the table one caption showing the amount of the expense reimbursement or fee waiver, and a second caption showing the Fund's net expenses after subtracting the fee reimbursement or expense waiver from the total fund operating expenses. The Fund should place these additional captions directly below the "Total Annual Fund Operating Expenses" caption of the table and should use appropriate descriptive captions, such as "Fee Waiver [and/or Expense Reimbursement]" and "Total Annual Fund Operating Expenses After Fee Waiver [and/or Expense Reimbursement]," respectively. If the Fund provides this disclosure, also disclose the period for which the expense reimbursement or fee waiver arrangement is expected to continue, and briefly describe who can terminate the arrangement and under what circumstances.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 11 false06falseRowprimaryElement*8false 2rr_NetExpensesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalserr:NonNegativePure4TypepureTotal Annual Fund Operating Expenses.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 11 false0 0rr_NetExpensesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.01450.0145falsefalsefalse2truetruetrue0.0120.012falsefalsefalserr:NonNegativePure4TypepureTotal Annual Fund Operating Expenses.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 11 false01"Other expenses" have been estimated for the current fiscal year. 2The Fund's advisor has contractually agreed to waive its fees and/or absorb expenses of the Fund to ensure that total annual fund operating expenses (excluding, as applicable, taxes, leverage interest, brokerage commissions, dividend expenses on short sales, acquired fund fees and expenses as determined in accordance with Form N-1A, expenses incurred in connection with any merger or reorganization, or extraordinary expenses such as litigation expenses) do not exceed 1.45 % and 1.20 % of the average daily net assets of the Fund's Investor Class and Institutional Class shares, respectively. This agreement is in effect until September 30, 2014, and may be terminated before that date only by the Trust's Board of Trustees. The Fund's advisor is permitted to seek reimbursement from the Fund, subject to limitations, for fees it waived and Fund expenses it paid for three years from the date of any such waiver or payment. falseAnnual Fund Operating Expenses Gratry International Growth FundUnKnownUnKnownUnKnownUnKnownfalsefalsefalseSheet2661026018ColumnperiodPeriod*Columndei_LegalEntityAxisAxisimstgratry_S000041245MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*RowprimaryElement*falsenonnum:textBlockItemTypenaContains a command for the SEC Viewer for the role corresponding to OperatingExpensesData.No definition available.false011false 2rr_ExpenseExampleHeadingrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><i><b><u>Example</u></b></i></p>falsefalsefalsexbrli:stringItemTypestringHeading for Expense Example.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 4 false012false 2rr_ExpenseExampleNarrativeTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund&rsquo;s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</p>falsefalsefalsenonnum:textBlockItemTypenaThe Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection example -Paragraph 1 -Subparagraph 1 false013false 2rr_ExpenseExampleWithRedemptionTableTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div style="display: none;"> ~ http://xbrl.sec.gov/rr/role/ExpenseExample column dei_LegalEntityAxis compact imstgratry_S000041245Member ~ </div>falsefalse<div style="display: none;"> ~ http://xbrl.sec.gov/rr/role/ExpenseExample column dei_LegalEntityAxis compact imstgratry_S000041245Member ~ </div>truehttp://xbrl.sec.gov/rr/role/ExpenseExample020030 - Schedule - Expense Example {Transposed}truefalsefalse1falseColumnprimaryElement*3false 2rr_ExpenseExampleYear01rr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabelrr:NonNegativeMonetaryTypemonetaryThe Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 4 false2 USDfalsefalse$2falseColumnprimaryElement*4false 2rr_ExpenseExampleYear03rr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabelrr:NonNegativeMonetaryTypemonetaryThe Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection example -Paragraph 1 -Subparagraph 2 false2 USDfalsefalse$1falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisimstgratry_S000041245MemberRowrr_ProspectusShareClassAxisAxis*RowunitUnit*duration2013-06-28T00:00:002013-06-28T00:00:00falsefalseGratry International Growth Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldiimstgratry_S000041245Memberdei_LegalEntityAxisexplicitMemberfalsefalseInvestor Classrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldiimstgratry_C000127895Memberrr_ProspectusShareClassAxisexplicitMemberGratry International Growth FundInvestor ClassUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170 0truefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue148148falsefalsefalse2truefalsetrue568568falsefalsefalsenanafalse02falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisimstgratry_S000041245MemberRowrr_ProspectusShareClassAxisAxis*RowunitUnit*duration2013-06-28T00:00:002013-06-28T00:00:00falsefalseGratry International Growth Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldiimstgratry_S000041245Memberdei_LegalEntityAxisexplicitMemberfalsefalseInstitutional Classrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldiimstgratry_C000127894Memberrr_ProspectusShareClassAxisexplicitMemberGratry International Growth FundInstitutional ClassUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170 0truefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue122122falsefalsefalse2truefalsetrue491491falsefalsefalsenanafalse0falseExpense Example Gratry International Growth Fund (USD $)UnKnownUnKnownUnKnownUnKnownfalsefalsefalseSheet222222014ColumnprimaryElement*RowperiodPeriod*Rowdei_LegalEntityAxisAxisimstgratry_S000041245MemberRowrr_ProspectusShareClassAxisAxis*RowunitUnit*falsenonnum:textBlockItemTypenaContains a command for the SEC Viewer for the role corresponding to ExpenseExample.No definition available.false014false 2rr_PortfolioTurnoverHeadingrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Portfolio Turnover</b></p>falsefalsefalsexbrli:stringItemTypestringDisclose the portfolio turnover rate provided in response to Item 14(a) for the most recent fiscal year (or for such shorter period as the Fund has been in operation). Disclose the period for which the information is provided if less than a full fiscal year. A Fund that is a Money Market Fund may omit the portfolio turnover information required by this Item.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 5 false015false 2rr_PortfolioTurnoverTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">The Fund pays transaction costs, such as commissions, when it buys and sells securities (or &ldquo;turns over&rdquo; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund&rsquo;s performance. The Fund is newly-created and, as a result, does not yet have a portfolio turnover rate.</p>falsefalsefalsenonnum:textBlockItemTypenaDisclose the portfolio turnover rate provided in response to Item 14(a) for the most recent fiscal year (or for such shorter period as the Fund has been in operation). Disclose the period for which the information is provided if less than a full fiscal year. A Fund that is a Money Market Fund may omit the portfolio turnover information required by this Item.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection example -Paragraph 3 false016false 2rr_StrategyHeadingrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Principal Investment Strategies</b></p>falsefalsefalsexbrli:stringItemTypestringPrincipal investment strategies of the Fund. Summarize how the Fund intends to achieve its investment objectives by identifying the Fund's principal investment strategies (including the type or types of securities in which the Fund invests or will invest principally) and any policy to concentrate in securities of issuers in a particular industry or group of industries.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection a false017false 2rr_StrategyNarrativeTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">Under normal circumstances, the Fund will invest at least 75% of its net assets in equity securities of non-U.S. domiciled companies or depository receipts of non-U.S. domiciled companies. Although the Fund may invest in any size companies, investments will generally be in large capitalization multinational companies. The Fund&rsquo;s advisor considers large capitalization companies to be those with market capitalization of $10 billion or higher at the time of investment. However, on occasion, the Fund may invest in companies with a market capitalization below $10 billion. The Fund invests primarily in equity securities of non-U.S. domiciled companies located in developed countries but may also invest in companies located in emerging market countries. The Fund may also invest in exchange-traded funds ("ETFs").</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">The Fund&rsquo;s investment strategy will typically be implemented by investing in the American Depository Receipts (&ldquo;ADRs&rdquo;) of non-U.S. companies. ADRs are negotiable certificates evidencing ownership of shares of foreign issuers and are alternatives to directly purchasing the underlying foreign securities in their national markets and currencies. The use of ADR&rsquo;s avoids the need for a global custodian and eliminates foreign currency exchange transactions that would otherwise be required to buy and sell the ordinary shares of companies in their local markets. The Fund generally will invest in securities of companies located in at least three different countries.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">In investing the Fund's assets, the Fund&rsquo;s advisor employs an active fundamental investment process to identify companies that it believes exhibit sound financial characteristics and are run by proven management teams. On an ongoing basis, the Fund&rsquo;s advisor employs a top-down macroeconomic analysis on each country in the investable universe, as defined from time to time. The Fund&rsquo;s advisor&rsquo;s &ldquo;top-down&rdquo; views are implemented with a fundamental bottom-up security selection process, whereby the Fund&rsquo;s advisor seeks to invest in companies that it believes to exhibit superior growth metrics, sound financial characteristics, and reasonable stock prices relative to perceived growth prospects at the time of purchase. The Fund&rsquo;s advisor incorporates a growth orientation to seek to identify securities of high quality companies trading at reasonable values compared to their future earnings potential. In constructing the Fund&rsquo;s portfolio, the Fund&rsquo;s advisor broadly diversifies investments across countries, sectors, and companies.</p>falsefalsefalsenonnum:textBlockItemTypenaPrincipal investment strategies of the Fund. Summarize how the Fund intends to achieve its investment objectives by identifying the Fund's principal investment strategies (including the type or types of securities in which the Fund invests or will invest principally) and any policy to concentrate in securities of issuers in a particular industry or group of industries.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection a false018false 2rr_RiskHeadingrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Principal Risks of Investing</b></p>falsefalsefalsexbrli:stringItemTypestringNarrative Risk Disclosure.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 1 false019false 2rr_RiskNarrativeTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">The Fund&rsquo;s principal risks are mentioned below. Before you decide whether to invest in the Fund, carefully consider these risk factors and special considerations associated with investing in the Fund, which may cause investors to lose money.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Market Risk. </b>Market risk is the risk that the Fund&rsquo;s share price may be affected by a sudden decline in the market value of an investment, or by an overall decline in the stock market due to, among other things, real or perceived adverse economic conditions, changes in general outlook for corporate earnings, changes in interest or currency rates or adverse investor sentiment generally.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Equity Securities Risk</b>. Investment in equity securities involves substantial risks and may be subject to wide and sudden fluctuations in market value, with a resulting fluctuation in the amount of profits and losses due to general market and economic conditions or factors relating to specific companies in which the Fund invests.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Foreign Securities Risk. </b>The prices of foreign securities may be more volatile than those of U.S. securities because of economic and social conditions abroad, political developments, and changes in the regulatory environment of foreign countries. In addition, changes in exchange rates and interest rates may adversely affect the value of the Fund&rsquo;s foreign investments. Foreign companies are generally subject to different legal and accounting standards than U.S. companies, and foreign financial intermediaries may be subject to less supervision and regulation than U.S. financial firms. The Fund&rsquo;s investments in ADRs are subject to these risks, even though ADRs are denominated in U.S. dollars, because changes in currency and exchange rates affect the values of the issuers of ADRs. In addition, the underlying issuers of certain depository receipts, particularly unsponsored or unregistered depository receipts, are under no obligation to distribute shareholder communications to the holders of such receipts, or to pass through to them any voting rights with respect to the deposited securities.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Currency Risk. </b>Foreign securities that trade in, and receive revenues in, foreign currencies are subject to the risk that those currencies may decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar may decline in value relative to the currency being hedged.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Emerging Market Risk.</b> The Fund&rsquo;s investments in foreign issuers in developing or emerging market countries involve exposure to changes in economic and political factors. The economies of most emerging market countries are in the infancy stage of capital market development. As a result, their economic systems are still evolving and their political systems are typically less stable than those in developed economies. Emerging market countries often suffer from currency devaluation and higher rates of inflation.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Growth-Oriented Investment Strategies Risk</b>. Growth funds generally focus on stocks of companies believed to have above-average potential for growth in revenue and earnings. Growth stock prices frequently reflect projections of future earnings or revenues, and if earnings growth expectations aren&rsquo;t met their valuations may return to more typical norms, causing their stock prices to fall.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Small- and Mid-Cap Company Risk.</b> The securities of small- or mid-capitalization companies may be subject to more abrupt or erratic market movements and may have lower trading volumes or more erratic trading than securities of larger companies or the market averages in general. In addition, such companies typically are subject to a greater degree of change in earnings and business prospects than are larger, more established companies.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>ETF Risk.</b> ETFs typically trade on securities exchanges and their shares may, at times, trade at a premium or discount to their net asset values. In addition, an ETF may not replicate exactly the performance of the benchmark index it seeks to track for a number of reasons, including transaction costs incurred by the ETF, the temporary unavailability of certain index securities in the secondary market or discrepancies between the ETF and the index with respect to the weighting of securities or the number of securities held. Investing in ETFs, which are investment companies, may involve duplication of advisory fees and certain other expenses.</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</p><p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Management Risk. </b>The Fund is subject to management risk because it is an actively managed portfolio. The Fund&rsquo;s advisor applies investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these will produce the desired results.</p>falsefalsefalsenonnum:textBlockItemTypenaNarrative Risk Disclosure. A Fund may, in responding to this Item, describe the types of investors for whom the Fund is intended or the types of investment goals that may be consistent with an investment in the Fund.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 1 -Subparagraph i -Clause instruction false020false 2rr_BarChartAndPerformanceTableHeadingrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left"><b>Performance</b></p>falsefalsefalsexbrli:stringItemTypestringRisk/Return Bar Chart and Table.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 false021false 2rr_PerformanceNarrativeTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0pt; text-align:left">The Fund is new and does not have a full calendar year performance record to compare against other mutual funds or broad measures of securities market performance such as indices. Performance information will be available after the Fund has been in operation for one calendar year.</p>falsefalsefalsenonnum:textBlockItemTypenaRisk/Return Bar Chart and Table.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 false0falseRisk/Return Summary (Gratry International Growth Fund)UnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://xbrl.sec.gov/rr/role/RiskReturn121