Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
ProspectusDate	rr_ProspectusDate	Aug. 01, 2012
GuideMark(SM) Large Cap Growth Fund (Second Prospectus Summary) | GuideMark(SM) Large Cap Growth Fund
Risk Return [Abstract]	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	GUIDEMARKSM LARGE CAP GROWTH FUND
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	GuideMarkSM Large Cap Growth Fund (the "Fund") seeks capital appreciation over the long term.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	The following table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	Shareholder Fees (fees paid directly from your investment) None
Operating Expenses Caption [Text]	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 [Text Block]	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 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. During the most recent fiscal year, the Fund's portfolio turnover rate was 126.61% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	126.61%
Expense Example [Heading]	rr_ExpenseExampleHeading	Example
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	The following Example is intended to help you compare the cost of investing in Institutional Shares of the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in Institutional Shares of 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 [Text]	rr_ExpenseExampleByYearCaption	Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategies of the Fund
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	Under normal circumstances, the Fund invests at least 80% of its assets in the securities of large capitalization companies. The Fund considers "large capitalization companies" to be companies, at the time of purchase, whose market capitalizations are within the range of the market capitalizations in the Russell 1000® Index. The Fund invests primarily in common stocks of growth-oriented companies. Growth-oriented companies generally have, among other factors, higher price-to-book ratios, higher forecasted growth values, and lower dividend yields relative to the broader market. The Fund may invest up to 15% of its total assets in American Depositary Receipts ("ADRs") of foreign companies, including companies domiciled in emerging markets. ADRs are typically issued by a U.S. bank or trust company and evidence ownership of underlying securities issued by a foreign corporation.    The sub-advisor selects stocks of companies that it believes have potential for growth, in comparison to other companies in that particular company's industry or the market, and in light of certain characteristics of the company. The characteristics that the sub-advisor may consider in evaluating a company include the company's business environment, market share, management, expansion plans, balance sheet, income statement, anticipated earnings, revenue and other measures of value.
Risk [Heading]	rr_RiskHeading	Principal Risks of Investing in the Fund
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The risks associated with an investment in the Fund can increase during times of significant market volatility. There is the risk that you could lose all or a portion of the money you have invested in the Fund. The following risks could affect the value of your investment in the Fund: Management Risk: An investment or allocation strategy used by the Advisor or a sub-advisor may fail to produce the intended results. Market Risk: The value of the Fund's investments and the net asset values of the shares of the Fund will fluctuate in response to various market and economic factors related to the equity and fixed income markets as well as the financial condition and prospects of companies in which the Fund invests. Growth Investment Risk: The Fund's investments in growth-oriented securities may be subject to greater price volatility and may be more sensitive to changes in the issuer's current or expected earnings than other equity securities. Foreign Securities Risk: The risks of investing in ADRs can increase the potential for losses in the Fund and may include currency fluctuations, political and economic instability, less government regulation, less publicly available information, limited trading markets, differences in financial reporting standards, fewer protections for passive investors and less stringent regulation of securities markets. Emerging Markets Risk: In addition to the risks generally associated with investing in foreign securities described above, countries with emerging markets may also have relatively unstable governments, fewer shareholder protections, and more limited economies and securities markets.
Risk Lose Money [Text]	rr_RiskLoseMoney	There is the risk that you could lose all or a portion of the money you have invested in the Fund.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The bar chart and table that follow illustrate annual returns for Service Shares (the class with the longest period of annual returns) of the Fund for periods ended December 31. This information is intended to give you some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and how the Fund's average annual returns over time compare with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Prior to April 1, 2011, the Fund used different investment strategies. The performance set forth below is partially attributable to the previous investment strategies and different sub-advisors.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart and table that follow illustrate annual returns for Service Shares (the class with the longest period of annual returns) of the Fund for periods ended December 31.
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading]	rr_BarChartHeading	GUIDEMARKSM LARGE CAP GROWTH FUND - SERVICE SHARES Calendar Year Returns as of 12/31
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	The year-to-date performance (as of June 30, 2012) of the Fund's Service Shares was 9.70%. During the period shown on the bar chart, the Fund's best and worst quarters are shown below:              Best Quarter:  Quarter ended June 30, 2003      15.88%              Worst Quarter: Quarter ended December 31, 2008 -24.41%
Index No Deduction for Fees, Expenses, Taxes [Text]	rr_IndexNoDeductionForFeesExpensesTaxes	reflects no deduction for fees, expenses or taxes
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns are calculated using the historical highest individual federal marginal income tax rates, and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Actual after-tax returns depend on your tax situation and may differ from those shown. In addition, the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements such as 401(k) plans and individual retirement accounts because such accounts are only subject to taxes upon withdrawal.
Performance Table Explanation after Tax Higher	rr_PerformanceTableExplanationAfterTaxHigher	In certain cases, the figure representing "Return After Taxes on Distributions and Sale of Fund Shares" may be higher than the other return figures for the same period. A higher after-tax return results when a capital loss occurs upon redemption and provides an assumed tax deduction that benefits the investor.
Performance Table Closing [Text Block]	rr_PerformanceTableClosingTextBlock	After-tax returns are calculated using the historical highest individual federal marginal income tax rates, and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown. In addition, the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements such as 401(k) plans and individual retirement accounts because such accounts are only subject to taxes upon withdrawal. In certain cases, the figure representing "Return After Taxes on Distributions and Sale of Fund Shares" may be higher than the other return figures for the same period. A higher after-tax return results when a capital loss occurs upon redemption and provides an assumed tax deduction that benefits the investor.
Caption	rr_AverageAnnualReturnCaption	Average Annual Total Returns for Periods Ended December 31, 2011	[1]
GuideMark(SM) Large Cap Growth Fund (Second Prospectus Summary) | GuideMark(SM) Large Cap Growth Fund | Russell 1000® Growth Index
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Russell 1000® Growth Index (reflects no deduction for fees, expenses or taxes)
1 Year	rr_AverageAnnualReturnYear01	2.64%
5 Years	rr_AverageAnnualReturnYear05	2.50%
10 Years	rr_AverageAnnualReturnYear10	2.60%
GuideMark(SM) Large Cap Growth Fund (Second Prospectus Summary) | GuideMark(SM) Large Cap Growth Fund | Institutional Shares
Risk Return [Abstract]	rr_RiskReturnAbstract
Management Fees	rr_ManagementFeesOverAssets	0.70%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.23%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.93%	[2]
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	95
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	296
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	515
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	1,143
GuideMark(SM) Large Cap Growth Fund (Second Prospectus Summary) | GuideMark(SM) Large Cap Growth Fund | Service Shares
Risk Return [Abstract]	rr_RiskReturnAbstract
Annual Return 2002	rr_AnnualReturn2002	(27.36%)
Annual Return 2003	rr_AnnualReturn2003	35.68%
Annual Return 2004	rr_AnnualReturn2004	8.13%
Annual Return 2005	rr_AnnualReturn2005	3.86%
Annual Return 2006	rr_AnnualReturn2006	(1.63%)
Annual Return 2007	rr_AnnualReturn2007	11.34%
Annual Return 2008	rr_AnnualReturn2008	(41.59%)
Annual Return 2009	rr_AnnualReturn2009	36.13%
Annual Return 2010	rr_AnnualReturn2010	16.94%
Annual Return 2011	rr_AnnualReturn2011	(3.41%)
Year to Date Return, Label	rr_YearToDateReturnLabel	The year-to-date performance of the Fund's Service Shares
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Jun. 30, 2012
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	9.70%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Best Quarter:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2003
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	15.88%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Worst Quarter:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Dec. 31, 2008
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(24.41%)
Label	rr_AverageAnnualReturnLabel	Return Before Taxes
1 Year	rr_AverageAnnualReturnYear01	(3.41%)
5 Years	rr_AverageAnnualReturnYear05	none
10 Years	rr_AverageAnnualReturnYear10	0.85%
GuideMark(SM) Large Cap Growth Fund (Second Prospectus Summary) | GuideMark(SM) Large Cap Growth Fund | Service Shares | After Taxes on Distributions
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return After Taxes on Distributions
1 Year	rr_AverageAnnualReturnYear01	(3.41%)
5 Years	rr_AverageAnnualReturnYear05	(0.17%)
10 Years	rr_AverageAnnualReturnYear10	0.73%
GuideMark(SM) Large Cap Growth Fund (Second Prospectus Summary) | GuideMark(SM) Large Cap Growth Fund | Service Shares | After Taxes on Distributions and Sales
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return After Taxes on Distributions and Sale of Fund Shares
1 Year	rr_AverageAnnualReturnYear01	(2.22%)
5 Years	rr_AverageAnnualReturnYear05	none
10 Years	rr_AverageAnnualReturnYear10	0.73%

[1] Institutional Shares of the Fund commenced operations on April 29, 2011. The returns of Institutional Shares would have been substantially similar to the returns of Service Shares; however, because Service Shares are subject to a 12b-1 fee and an internal administrative fee, while Institutional Shares are not, the returns of Institutional Shares would have been higher than those shown for Service Shares.

[2] Please note the Fund expense ratio shown above differs from the expense ratio in the "Financial Highlights" section of the Prospectus, because the "Financial Highlights" shows expense ratio information that includes the expense reductions generated when the Fund loaned its portfolio securities.