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Label Element Value
Prospectus [Line Items] rr_ProspectusLineItems  
Document Type dei_DocumentType 497
Document Period End Date dei_DocumentPeriodEndDate Dec. 31, 2018
Entity Registrant Name dei_EntityRegistrantName North Square Investments Trust
Entity Central Index Key dei_EntityCentralIndexKey 0001750821
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate May 13, 2019
Document Effective Date dei_DocumentEffectiveDate May 13, 2019
Prospectus Date rr_ProspectusDate Aug. 08, 2019
Entity Inv Company Type dei_EntityInvCompanyType N-1A
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
North Square Investments Trust

Supplement dated August 8, 2019 to the Prospectus
dated May 13, 2019, as supplemented (the “Prospectus”)

Disclosure Regarding the North Square Dynamic Small Cap Fund, North Square International Small Cap Fund, North Square Multi Strategy Fund, North Square Oak Ridge Dividend Growth Fund and North Square Oak Ridge Small Cap Growth Fund (the “Funds”)

Effective immediately, the performance information with respect to Class A shares in the “Average Annual Total Returns” table in each Fund’s “Summary Section” in the Prospectus (the “Original Performance Tables”) is deleted and replaced with the information with respect to Class A shares that appears under that Fund’s name below (the “New Performance Tables”). The New Performance Tables reflect the deduction of the maximum sales charge applicable to Class A shares for all periods. Inadvertently, the Original Performance Tables did not reflect the deduction of any applicable sales charges, resulting in overstated performance amounts for Class A shares for all periods. Accordingly, in the New Performance Tables below, the returns for Class A shares for all periods are lower than the returns that were previously disclosed in the Original Performance Tables.
Supplement Closing [Text Block] ck0001750821_SupplementClosingTextBlock
Investors Should Retain This Supplement for Future Reference
NORTH SQUARE DYNAMIC SMALL CAP FUND  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading North Square Dynamic Small Cap Fund
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns (for periods ended December 31, 2018)
NORTH SQUARE DYNAMIC SMALL CAP FUND | CLASS A  
Prospectus [Line Items] rr_ProspectusLineItems  
Label rr_AverageAnnualReturnLabel Class A - Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (14.72%)
5 Years rr_AverageAnnualReturnYear05 5.76%
10 Years rr_AverageAnnualReturnYear10 12.58%
Since Inception rr_AverageAnnualReturnSinceInception 11.80%
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 01, 2008
NORTH SQUARE INTERNATIONAL SMALL CAP FUND  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading North Square International Small Cap Fund
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns (for periods ended December 31, 2018)
NORTH SQUARE INTERNATIONAL SMALL CAP FUND | CLASS A  
Prospectus [Line Items] rr_ProspectusLineItems  
Label rr_AverageAnnualReturnLabel Class A - Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (29.41%)
Since Inception rr_AverageAnnualReturnSinceInception 0.90%
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 01, 2015
NORTH SQUARE MULTI STRATEGY FUND  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading North Square Multi Strategy Fund
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns (for periods ended December 31, 2018)
NORTH SQUARE MULTI STRATEGY FUND | CLASS A  
Prospectus [Line Items] rr_ProspectusLineItems  
Label rr_AverageAnnualReturnLabel Class A - Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (13.54%)
5 Years rr_AverageAnnualReturnYear05 4.47%
10 Years rr_AverageAnnualReturnYear10 10.15%
Since Inception rr_AverageAnnualReturnSinceInception 4.06%
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 01, 1999
NORTH SQUARE MULTI STRATEGY FUND | CLASS A | After Taxes on Distributions  
Prospectus [Line Items] rr_ProspectusLineItems  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 (20.54%)
5 Years rr_AverageAnnualReturnYear05 2.72%
10 Years rr_AverageAnnualReturnYear10 9.23%
Since Inception rr_AverageAnnualReturnSinceInception 3.46%
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 01, 1999
NORTH SQUARE MULTI STRATEGY FUND | CLASS A | After Taxes on Distributions and Sales  
Prospectus [Line Items] rr_ProspectusLineItems  
Label rr_AverageAnnualReturnLabel Class A - Return After Taxes on Distributions and Sale of Fund Shares
1 Year rr_AverageAnnualReturnYear01 (2.57%)
5 Years rr_AverageAnnualReturnYear05 3.58%
10 Years rr_AverageAnnualReturnYear10 8.45%
Since Inception rr_AverageAnnualReturnSinceInception 3.31%
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 01, 1999
NORTH SQUARE OAK RIDGE DIVIDEND GROWTH FUND  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading North Square Oak Ridge Dividend Growth Fund
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns (for periods ended December 31, 2018)
NORTH SQUARE OAK RIDGE DIVIDEND GROWTH FUND | CLASS A  
Prospectus [Line Items] rr_ProspectusLineItems  
Label rr_AverageAnnualReturnLabel Class A - Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (6.82%)
5 Years rr_AverageAnnualReturnYear05 6.21%
Since Inception rr_AverageAnnualReturnSinceInception 8.13%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 28, 2013
NORTH SQUARE OAK RIDGE SMALL CAP GROWTH FUND  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading North Square Oak Ridge Small Cap Growth Fund
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns (for periods ended December 31, 2018)
NORTH SQUARE OAK RIDGE SMALL CAP GROWTH FUND | CLASS A  
Prospectus [Line Items] rr_ProspectusLineItems  
Label rr_AverageAnnualReturnLabel Class A - Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (11.98%)
5 Years rr_AverageAnnualReturnYear05 1.17%
10 Years rr_AverageAnnualReturnYear10 10.32%
Since Inception rr_AverageAnnualReturnSinceInception 9.08%
Inception Date rr_AverageAnnualReturnInceptionDate Jan. 03, 1994