Label	Element	Value
PACE® Intermediate Fixed Income Investments
Risk/Return:	rr_RiskReturnAbstract
Supplement [Text Block]	ck0000930007_SupplementTextBlock	PACE^® Select Advisors Trust August 8, 2017 Supplement to the prospectuses relating to Class A, Class C and Class Y shares (the "Multi-Class Prospectus") and Class P shares (the "Class P Prospectus"), dated November 28, 2016, as supplemented. Includes: • PACE^® Intermediate Fixed Income Investments Dear Investor, The purpose of this supplement is to update certain information for PACE Select Advisors Trust (the "Trust"). This supplement discloses variations to sales load waivers and discounts that would apply to investors that purchase Class A or Class C shares of the funds through a single intermediary or category of multiple intermediaries. I. Multi-Class Prospectus Effective immediately, the Multi-Class Prospectus is hereby revised as follows:
Risk/Return [Heading]	rr_RiskReturnHeading	PACE® Intermediate Fixed Income Investments
Expense [Heading]	rr_ExpenseHeading	The "Summary" section for each fund is revised by adding the following sentences as the last two sentences of the first paragraph of the sub-section captioned "Fees and expenses of the fund":
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	Different intermediaries and financial professionals may make available different sales charge waivers or discounts. These variations are described in Appendix A on page A-1 of this prospectus (Intermediary-Specific Sales Charge Waivers and Discounts). PLEASE BE SURE TO RETAIN THIS IMPORTANT INFORMATION FOR FUTURE REFERENCE.

- Definition

Risk/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.

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