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Label Element Value
Prospectus [Line Items] rr_ProspectusLineItems  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
PSCXPacer Swan SOS Conservative (January) ETF
PSCWPacer Swan SOS Conservative (April) ETF
PSCJPacer Swan SOS Conservative (July) ETF
PSCQPacer Swan SOS Conservative (October) ETF
PSMDPacer Swan SOS Moderate (January) ETF
PSMRPacer Swan SOS Moderate (April) ETF
PSMJPacer Swan SOS Moderate (July) ETF
PSMOPacer Swan SOS Moderate (October) ETF
PSFDPacer Swan SOS Flex (January) ETF
PSFMPacer Swan SOS Flex (April) ETF
PSFJPacer Swan SOS Flex (July) ETF
PSFOPacer Swan SOS Flex (October) ETF
(each, a “Fund” and together, the “Funds”)

Supplement dated December 20, 2021 to each Fund’s Summary Prospectus
and the Funds’ Prospectus, each dated December 23, 2020, as previously supplemented
As described in each Fund’s Summary Prospectus and the Funds’ Prospectus, shareholders are subject to a pre-determined upside return cap (“Cap”) from an investment in a Fund for a given period of approximately one year (the “Investment Period”).
On December 17, 2021, the previous Investment Period for the Pacer Swan SOS Conservative (January) ETF, the Pacer Swan SOS Moderate (January) ETF, and the Pacer Swan SOS Flex (January) ETF (collectively, the “Pacer Swan SOS January Series”) ended. A new Investment Period for the Pacer Swan SOS January Series began as of December 20, 2021 and will end on December 31, 2022. The Investment Period and Cap for each Fund is set forth below.
Investment
Period Start		Investment
Period End		Cap (before Fund
fees and expenses)		Cap (after Fund
fees and expenses)
Pacer Swan SOS Conservative (January) ETFDecember 20, 2021December 31, 20228.60%7.85%
Pacer Swan SOS Conservative (April) ETFApril 1, 2021March 31, 20229.10%8.35%
Pacer Swan SOS Conservative (July) ETFJuly 1, 2021June 30, 20227.15%6.40%
Pacer Swan SOS Conservative (October) ETFOctober 1, 2021September 30, 20227.56%6.81%
Pacer Swan SOS Moderate (January) ETFDecember 20, 2021December 31, 202210.30%9.55%
Pacer Swan SOS Moderate (April) ETFApril 1, 2021March 31, 202210.48%9.73%
Pacer Swan SOS Moderate (July) ETFJuly 1, 2021June 30, 20227.95%7.20%
Pacer Swan SOS Moderate (October) ETFOctober 1, 2021September 30, 20229.07%8.32%
Pacer Swan SOS Flex (January) ETFDecember 20, 2021December 31, 202214.70%13.95%
Pacer Swan SOS Flex (April) ETFApril 1, 2021March 31, 202216.04%15.29%
Pacer Swan SOS Flex (July) ETFJuly 1, 2021June 30, 202211.30%10.55%
Pacer Swan SOS Flex (October) ETFOctober 1, 2021September 30, 202212.98%12.23%
Supplement Closing [Text Block] ck0001616668_SupplementClosingTextBlock Please retain this Supplement with your Prospectus for future reference.
Pacer Swan SOS Conservative (January) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Pacer Swan SOS Conservative (January) ETF
Pacer Swan SOS Conservative (January) ETF | Pacer Swan SOS Conservative (January) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol PSCX
Pacer Swan SOS Conservative (April) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Pacer Swan SOS Conservative (April) ETF
Pacer Swan SOS Conservative (April) ETF | Pacer Swan SOS Conservative (April) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol PSCW
Pacer Swan SOS Conservative (July) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Pacer Swan SOS Conservative (July) ETF
Pacer Swan SOS Conservative (July) ETF | Pacer Swan SOS Conservative (July) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol PSCJ
Pacer Swan SOS Conservative (October) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Pacer Swan SOS Conservative (October) ETF
Pacer Swan SOS Conservative (October) ETF | Pacer Swan SOS Conservative (October) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol PSCQ
Pacer Swan SOS Moderate (January) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Pacer Swan SOS Moderate (January) ETF
Pacer Swan SOS Moderate (January) ETF | Pacer Swan SOS Moderate (January) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol PSMD
Pacer Swan SOS Moderate (April) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Pacer Swan SOS Moderate (April) ETF
Pacer Swan SOS Moderate (April) ETF | Pacer Swan SOS Moderate (April) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol PSMR
Pacer Swan SOS Moderate (July) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Pacer Swan SOS Moderate (July) ETF
Pacer Swan SOS Moderate (July) ETF | Pacer Swan SOS Moderate (July) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol PSMJ
Pacer Swan SOS Moderate (October) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Pacer Swan SOS Moderate (October) ETF
Pacer Swan SOS Moderate (October) ETF | Pacer Swan SOS Moderate (October) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol PSMO
Pacer Swan SOS Flex (January) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Pacer Swan SOS Flex (January) ETF
Pacer Swan SOS Flex (January) ETF | Pacer Swan SOS Flex (January) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol PSFD
Pacer Swan SOS Flex (April) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Pacer Swan SOS Flex (April) ETF
Pacer Swan SOS Flex (April) ETF | Pacer Swan SOS Flex (April) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol PSFM
Pacer Swan SOS Flex (July) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Pacer Swan SOS Flex (July) ETF
Pacer Swan SOS Flex (July) ETF | Pacer Swan SOS Flex (July) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol PSFJ
Pacer Swan SOS Flex (October) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Pacer Swan SOS Flex (October) ETF
Pacer Swan SOS Flex (October) ETF | Pacer Swan SOS Flex (October) ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol PSFO