XML 52 R412.htm IDEA: XBRL DOCUMENT v2.4.0.6
Label Element Value
Risk Return [Abstract] rr_RiskReturnAbstract  
ProspectusDate rr_ProspectusDate Jan. 31, 2012
SIMT MULTI-ASSET INFLATION MANAGED FUND (Prospectus Summary) | SIMT MULTI-ASSET INFLATION MANAGED FUND
 
Risk Return [Abstract] rr_RiskReturnAbstract  
Risk/Return, Heading rr_RiskReturnHeading MULTI-ASSET INFLATION MANAGED FUND
Investment Objective, Heading rr_ObjectiveHeading Investment Goal
investment Objective, Primary rr_ObjectivePrimaryTextBlock Total return exceeding the rate of inflation.
Expense, Heading rr_ExpenseHeading Fees and Expenses
Expense, Narrative rr_ExpenseNarrativeTextBlock This table describes the fees and expenses that you may pay if you buy and hold
Fund shares.
Shareholder Fees, Caption rr_ShareholderFeesCaption SHAREHOLDER FEES (fees paid directly from your investment)
Operating Expenses, Caption rr_OperatingExpensesCaption ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover, Heading rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover rr_PortfolioTurnoverTextBlock The Fund will pay transaction costs, such as commissions, when it buys and sells
securities (or "turns over" its portfolio). A higher portfolio turnover rate 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.
Other Expenses, New Fund, Based on Estimates rr_OtherExpensesNewFundBasedOnEstimates Other expenses are based on estimated amounts for the current fiscal year.
Expense 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.
Expense Example, By Year, Caption rr_ExpenseExampleByYearCaption Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:
Investment Strategy, Heading rr_StrategyHeading Principal Investment Strategies
Investment Strategy, Narrative rr_StrategyNarrativeTextBlock Under normal circumstances, the Fund will seek to generate "real return" (i.e.,
total returns that exceed the rate of inflation over a full market cycle,
regardless of market conditions) by selecting investments from among a broad
range of asset classes, including fixed income and equity securities and
commodity investments. The asset classes used and the Fund's allocations among
asset classes will be determined based on SIMC's or the Sub-Adviser's views of
fundamental, technical or valuation measures. The Fund's allocations among asset
classes may be adjusted over short periods of time. At any point in time, the
Fund may be diversified across many asset classes or concentrated in a limited
number of asset classes.

The Fund uses a multi-manager approach under the general supervision of SIMC,
allocating its assets among one or more Sub-Advisers using different investment
strategies. SIMC may also directly manage a portion of the Fund's portfolio.

Equity securities may include common or preferred stocks, warrants, rights,
depositary receipts, equity-linked securities and other equity interests. The
Fund may invest in securities of issuers of any market capitalization and may
invest in both foreign and domestic equity securities. In addition to direct
investment in securities and other instruments, the Fund may invest in
affiliated and unaffiliated funds, including open-end funds, closed-end funds
and ETFs. The Fund may also invest in REITs and U.S. and non-U.S. real estate
companies.

The Fund may invest in fixed income securities that are investment or
non-investment grade (also known as junk bonds), U.S.- or foreign-issued
(including emerging markets), and corporate- or government-issued. The Fund may
invest in a wide range of fixed income investments, including obligations of
U.S. and foreign commercial banks, such as certificates of deposit, time
deposits, bankers' acceptances and bank notes, obligations of foreign
governments, U.S. and foreign corporate debt securities, including commercial
paper, and fully collateralized repurchase and reverse repurchase agreements
with highly rated counterparties (those rated A or better) and securitized
issues such as mortgage-backed securities, asset-backed securities, commercial
mortgage-backed securities and collateralized debt obligations. The Fund's fixed
income investments may also include U.S. Treasury obligations, obligations
issued by agencies or instrumentalities of the U.S. Government (including
obligations not guaranteed by the U.S. Treasury), such as obligations issued by
U.S. Government sponsored entities, and TIPS and other inflation-linked debt
securities. The Fund may invest in fixed, variable and floating rate fixed
income instruments. The Fund's portfolio and the Fund's investments in
particular fixed income securities are not subject to any maturity or duration
restrictions. The Fund may also enter into repurchase or reverse repurchase
agreements with respect to its investment in the fixed income securities listed
above and may use the cash received to enter into a short position on U.S.
Treasury bonds.

A portion of the Fund's assets may also be invested in commodity investments to
provide exposure to the investment returns of the commodities markets. Commodity
investments include notes with interest payments that are tied to an underlying
commodity or commodity index, ETFs or other exchange-traded products that are
tied to the performance of a commodity or commodity index or other types of
investment vehicles or instruments that provide returns that are tied to
commodities or commodity indices. The Fund may also invest in equity
securities of issuers in commodity-related industries.

The Fund may also seek to gain exposure to the commodity markets, in whole or in
part, through investments in a wholly owned subsidiary of the Fund organized
under the laws of the Cayman Islands (Subsidiary). The Subsidiary, unlike the
Fund, may invest to a significant extent in commodities, commodity contracts,
commodity investments and derivative instruments. The Subsidiary may also invest
in other instruments in which the Fund is permitted to invest, either as
investments or to serve as margin or collateral for its derivative positions.
The Fund may invest up to 25% of its total assets in the Subsidiary. The
Subsidiary is advised by SIMC.

The Fund may also purchase or sell futures contracts, options, forward contracts
and swaps for return enhancement or hedging purposes. Futures contracts, forward
contracts and swaps may be used to synthetically obtain exposure to securities
or baskets of securities and to manage the Fund's interest rate duration and
yield curve exposure. These derivatives may also be used to mitigate the Fund's
overall level of risk and/or the Fund's risk to particular types of securities
or market segments. The Fund may purchase or sell futures contracts on U.S.
Government securities for return enhancement. Interest rate swaps may further be
used to manage the Fund's interest rate risk. Swaps on indices may be used to
manage the inflation-adjusted return of the Fund. The Fund may buy credit
default swaps in an attempt to manage credit risk where the Fund has credit
exposure to an issuer, and the Fund may sell credit default swaps to more
efficiently gain credit exposure to a security or basket of securities. As a
result of its investment in futures contracts, forward contracts and swaps, the
Fund may have a leveraged exposure to one or more asset classes.

The Fund may invest in U.S. dollar and non-U.S. dollar denominated securities.
The Sub-Adviser may also seek to enhance the Fund's return by actively managing
the Fund's foreign currency exposure. In managing the Fund's currency exposure,
the Sub-Adviser may buy and sell currencies (i.e., take long or short positions)
using futures and foreign currency forward contracts. The Fund may take long and
short positions in foreign currencies in excess of the value of the Fund's
assets denominated in a particular currency or when the Fund does not own assets
denominated in that currency. The Fund may also engage in currency transactions
in an attempt to take advantage of certain inefficiencies in the currency
exchange market, to increase its exposure to a foreign currency or to shift
exposure to foreign currency fluctuations from one currency to another. In
managing the Fund's currency exposure for foreign securities, the Sub-Adviser
may buy and sell currencies for hedging or for speculative purposes.

Due to its investment strategy, the Fund may buy and sell securities frequently.
Risk, Heading rr_RiskHeading Principal Risks
Risk, Narrative rr_RiskNarrativeTextBlock The success of the Fund's investment strategy depends both on SIMC's selection
of the Sub-Adviser(s) and allocation of assets to such Sub-Adviser(s). The
Sub-Adviser(s) may be incorrect in assessing market trends or the value or
growth capability of particular securities or asset classes. In addition, the
methodology by which SIMC allocates the Fund's assets to the Sub-Adviser(s) may
not achieve desired results and may cause the Fund to lose money or underperform
other comparable mutual funds.
  
The Sub-Adviser(s) and any underlying funds in which it invests may apply any of
a variety of investment strategies and may invest in a broad range of asset
classes, securities and other investments to achieve those investment
strategies. The principal risks of using such investment strategies and making
investments in such asset classes, securities and other investments are set
forth below. Because an underlying fund's use of an investment strategy or
investment in an asset class, security or other investment is subject to the
same or similar risks as the Fund's use of such strategy or investment in such
asset class, security or other investment, the term "the Fund" in the paragraphs
below collectively refers to both the Fund and each underlying fund.

Asset-Backed Securities Risk - Payment of principal and interest on asset-backed
securities is dependent largely on cash flows generated by the assets backing
the securities, and asset-backed securities may not have the benefit of any
security interest in the related assets.

Below Investment Grade Securities Risk - Fixed income securities rated below
investment grade (junk bonds) involve greater risks of default or downgrade and
are more volatile than investment grade securities because the prospect for
repayment of principal and interest of many of these securities is speculative.

Commodity Investments and Derivatives Risk - Commodity investments and
derivatives may be more volatile and less liquid than direct investments in the
underlying commodities themselves. Commodity-related equity returns can also be
affected by the issuer's financial structure or the performance of unrelated
businesses. The value of a commodity investment or a derivative investment in
commodities is typically based upon the price movements of a physical commodity,
a commodity futures contract or commodity index or some other readily measurable
economic variable that is dependent upon changes in the value of commodities or
the commodities markets. The value of these securities will rise or fall in
response to changes in the underlying commodity or related benchmark or
investment, changes in interest rates or factors affecting a particular industry
or commodity, such as natural disasters, weather and U.S. and international
economic, political and regulatory developments.

Corporate Fixed Income Securities Risk - Corporate fixed income securities
respond to economic developments, especially changes in interest rates, as well
as to perceptions of the creditworthiness and business prospects of individual
issuers.

Credit Risk - The risk that the issuer of a security or the counterparty to a
contract will default or otherwise become unable to honor a financial
obligation.

Currency Risk - As a result of the Fund's investments in securities or other
investments denominated in, and/or receiving revenues in, foreign currencies,
the Fund will be subject to currency risk. Currency risk is the risk that
foreign currencies will decline in value relative to the U.S. dollar or, in the
case of hedging positions, that the U.S. dollar will decline in value relative
to the currency hedged. In either event, the dollar value of an investment in
the Fund would be adversely affected. Currency exchange rates may fluctuate in
response to, among other things, changes in interest rates, intervention (or
failure to intervene) by U.S. or foreign governments, central banks or
supranational entities, or by the imposition of currency controls or other
political developments in the United States or abroad.

Derivatives Risk - The Fund's use of futures contracts, forward contracts,
options and swaps is subject to market risk, leverage risk, correlation risk and
liquidity risk. Leverage risk, liquidity risk and market risk are described
below. Correlation risk is the risk that changes in the value of the derivative
may not correlate perfectly with the underlying asset, rate or index. The Fund's
use of forward contracts and swap agreements is also subject to credit risk and
valuation risk. Valuation risk is the risk that the derivative may be difficult
to value and/or may be valued incorrectly. Credit risk is described above. Each
of these risks could cause the Fund to lose more than the principal amount
invested in a derivative instrument.

Equity Market Risk - The risk that stock prices will fall over short or extended
periods of time.

Extension Risk - The risk that rising interest rates may extend the duration of
a fixed income security, typically reducing the security's value.

Fixed Income Market Risk - The prices of the Fund's fixed income securities
respond to economic developments, particularly interest rate changes, as well as
to perceptions about the creditworthiness of individual issuers, including
governments and their agencies. In the case of foreign securities, price
fluctuations will reflect international economic and political events, as well
as changes in currency valuations relative to the U.S. dollar.

Foreign Issuer Risk - The risk that issuers in foreign countries face political
and economic events unique to those countries. These events will not necessarily
affect the U.S. economy or similar issuers located in the U.S.

Inflation Protected Securities Risk - The value of inflation protected
securities, including TIPS, will typically fluctuate in response to changes in
"real" interest rates, generally decreasing when real interest rates rise and
increasing when real interest rates fall. Real interest rates represent nominal
(or stated) interest rates reduced by the expected impact of inflation. In
addition, interest payments on inflation-indexed securities will generally vary
up or down along with the rate of inflation.

Interest Rate Risk - The risk that the Fund's yield will decline due to falling
interest rates. An increase in interest rates typically causes the value of
fixed income securities in which the Fund invests to fall, while a decrease in
interest rates typically causes the value of such securities to rise.

Investment Company Risk - When the Fund invests in an investment company, it
will bear a pro rata portion of the investment company's expenses in addition to
directly bearing the expenses associated with its own operations. Furthermore,
while the risks of owning shares of an investment company generally reflect the
risks of owning the underlying investments of the investment company, the Fund
may be subject to additional or different risks than if the Fund had invested
directly in the underlying investments. For example, the lack of liquidity in an
ETF could result in its value being more volatile than that of the underlying
portfolio securities.

Investment in the Subsidiary Risk - The Subsidiary is not registered under the
1940 Act and, unless otherwise noted in this prospectus, is not subject to all
of the investor protections of the 1940 Act. Thus, the Fund, as an investor in
the Subsidiary, will not have all of the protections offered to investors in
registered investment companies. In addition, changes in the laws of the United
States and/or the Cayman Islands, under which the Fund and the Subsidiary,
respectively, are organized, could result in the inability of the Fund and/or
the Subsidiary to operate as intended and could negatively affect the Fund and
its shareholders.

Leverage Risk - The use of leverage can amplify the effects of market volatility
on the Fund's share price and may also cause the Fund to liquidate portfolio
positions when it would not otherwise be advantageous to do so in order to
satisfy its obligations.
  
Liquidity Risk - The risk that certain securities may be difficult or impossible
to sell at the time and price that the Fund would like. The Fund may have to
lower the price, sell other securities instead or forego an investment
opportunity, any of which could have a negative effect on Fund management or
performance.

Market Risk - The risk that the market value of a security may move up and down,
sometimes rapidly and unpredictably. Market risk may affect a single issuer, an
industry, a sector or the equity or bond market as a whole.

Mortgage-Backed Securities Risk - Mortgage-backed securities are affected by,
among other things, interest rate changes and the possibility of prepayment of
the underlying mortgage loans. Mortgage-backed securities are also subject to
the risk that underlying borrowers will be unable to meet their obligations.

Non-Diversified Risk - The Fund is non-diversified, which means that it may
invest in the securities of relatively few issuers. As a result, the Fund may be
more susceptible to a single adverse economic or political occurrence affecting
one or more of these issuers and may experience increased volatility due to its
investments in those securities.

Opportunity Risk - The risk of missing out on an investment opportunity because
the assets necessary to take advantage of it are tied up in other investments.

Portfolio Turnover Risk - Due to its investment strategy, the Fund may buy and
sell securities frequently. This may result in higher transaction costs and
additional capital gains tax liabilities.

Prepayment Risk - The risk that, with declining interest rates, fixed income
securities with stated interest rates may have the principal paid earlier than
expected, requiring the Fund to invest the proceeds at generally lower interest
rates.

Real Estate Industry Risk - Securities of companies principally engaged in the
real estate industry may be subject to the risks associated with direct
ownership of real estate. Risks commonly associated with the direst ownership of
real estate include fluctuations in the value of underlying properties, defaults
by borrowers or tenants, changes in interest rates and risks related to general
or local economic conditions.

REITs Risk - REITs are trusts that invest primarily in commercial real estate or
real estate-related loans. The Fund's investments in REITs will be subject to
the risks associated with the direct ownership of real estate, which are
discussed above. Some REITs may have limited diversification and may be subject
to risks inherent in financing a limited number of properties.

Short Sales Risk - Short sales expose the Fund to the risk that it will be
required to buy the security sold short (also known as "covering" the short
position) at a time when the security has appreciated in value, thus resulting
in a loss to the Fund. Reinvesting proceeds received from short selling may
create leverage, which can amplify the effects of market volatility on the
Fund's share price.

Small and Medium Capitalization Risk - The small and medium capitalization
companies in which the Fund invests may be more vulnerable to adverse business
or economic events than larger, more established companies. In particular, small
and medium capitalization companies may have limited product lines, markets and
financial resources and may depend upon a relatively small management group.
Therefore, small and medium capitalization stocks may be more volatile than
those of larger companies. Small and medium capitalization stocks may be traded
over-the-counter or listed on an exchange.

Tax Risk - The Fund may gain most of its exposure to the commodities markets
through its investment in the Subsidiary, which invests in commodity investments
and derivative instruments. To the extent the Fund invests in such instruments
directly, it will seek to restrict its income from commodity-linked derivative
instruments that do not generate qualifying income, such as commodity-linked
swaps, to a maximum of 10% of its gross income (when combined with its other
investments that produce non-qualifying income) to comply with certain
qualifying income tests necessary for the Fund to qualify as a regulated
investment company under Subchapter M of the Internal Revenue Code of 1986, as
amended. The tax treatment of certain commodity-linked derivative instruments
may be affected by future regulatory or legislative changes that could affect
the character, timing and/or amount of the Fund's taxable income or gains and
distributions.

U.S. Government Securities Risk - Although U.S. Government securities are
considered to be among the safest investments, they are not guaranteed against
price movements due to changing interest rates. Obligations issued by some U.S.
Government agencies are backed by the U.S. Treasury, while others are backed
solely by the ability of the agency to borrow from the U.S. Treasury or by the
agency's own resources.

Loss of money is a risk of investing in the Fund.
Risk, Lose Money rr_RiskLoseMoney Loss of money is a risk of investing in the Fund.
Risk, Nondiversified Status rr_RiskNondiversifiedStatus The Fund is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Fund may be more susceptible to a single adverse economic or political occurrence affecting one or more of these issuers and may experience increased volatility due to its investments in those securities.
Bar Chart and Performance Table, Heading rr_BarChartAndPerformanceTableHeading Performance Information
Performance, Narrative rr_PerformanceNarrativeTextBlock As of January 31, 2012, the Fund had not yet commenced operations; therefore,
performance results have not been provided.
Performance, One Year or Less rr_PerformanceOneYearOrLess As of January 31, 2012, the Fund had not yet commenced operations; therefore, performance results have not been provided.
SIMT MULTI-ASSET INFLATION MANAGED FUND (Prospectus Summary) | SIMT MULTI-ASSET INFLATION MANAGED FUND | Class A
 
Risk Return [Abstract] rr_RiskReturnAbstract  
Redemption Fee (applies to a redemption, or series of redemptions, from a single identifiable source that, in the aggregate, exceeds $25 million within any thirty (30) day period) rr_RedemptionFeeOverRedemption (0.75%)
Management Fees of the Fund ck0000804239_Component1ManagementFeesOverAssets 0.0055
Management Fees of the Subsidiary ck0000804239_Component2ManagementFeesOverAssets 0.00
Total Management Fees rr_ManagementFeesOverAssets 0.55%
Distribution (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses of the Fund rr_Component1OtherExpensesOverAssets 0.80% [1]
Other Expenses of the Subsidiary rr_Component2OtherExpensesOverAssets none [1]
Total Other Expenses rr_OtherExpensesOverAssets 0.80% [1]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.35%
Expense Example, With Redemption, 1 Year rr_ExpenseExampleYear01 137
Expense Example, With Redemption, 3 Years rr_ExpenseExampleYear03 428
[1] Other expenses are based on estimated amounts for the current fiscal year.