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Label Element Value
Pacer Trendpilot International ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Pacer Trendpilot International ETF
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
PTINPacer Trendpilot International ETF
(the “Fund”)

Supplement dated October 29, 2020 to the
Summary Prospectus and Prospectus, each dated August 31, 2020

Effective immediately, the descriptions of the methodology of the Fund’s underlying index in the sections entitled “Principal Investment Strategies of the Fund — The Index” in the Summary Prospectus and the Summary Section with respect to the Fund in the Prospectus are supplemented to include the following:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies of the Fund
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock Special Indicator. In the event the S&P Developed Ex-U.S. LargeCap Index closes 20% above or 20% below its 200-day moving average, the Index will change exposures effective at the end of the following business day to be 50% to the S&P Developed Ex-U.S. LargeCap Index and 50% to 3-Month US Treasury bills. This new exposure will continue until the Equity Indicator, 50/50 Indicator, or T-Bill Indicator is triggered.
Supplement Closing [Text Block] ck0001616668_SupplementClosingTextBlock Please retain this Supplement with your Summary Prospectus and Prospectus for future reference.
Pacer Trendpilot International ETF | Pacer Trendpilot International ETF Class  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol PTIN