v3.25.1
Shareholder Report, Line Graph (Details) - USD ($)
12 Months Ended
Mar. 31, 2025
Sep. 30, 2024
Mar. 31, 2024
Sep. 30, 2023
Mar. 31, 2023
Sep. 30, 2022
Mar. 31, 2022
Sep. 30, 2021
Mar. 31, 2021
Oct. 30, 2020
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2018
Apr. 07, 2017
Mar. 31, 2017
Jan. 27, 2017
Mar. 31, 2016
Nov. 20, 2015
Mar. 31, 2015
EuroPacific Growth Fund® - Class A [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name EuroPacific Growth Fund — Class A (with sales charge)                                    
Account Value $ 15,278   $ 15,286   $ 13,519   $ 14,028   $ 15,527   $ 9,691 $ 11,144 $ 11,726   $ 9,712   $ 8,616   $ 9,426
EuroPacific Growth Fund® - Class C [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name EuroPacific Growth Fund — Class C (with sales charge)                                    
Account Value $ 15,251   15,260   13,496   14,109   15,732   9,893 11,461 12,154   10,143   9,070   10,000
EuroPacific Growth Fund® - Class T [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name EuroPacific Growth Fund — Class T (with sales charge)                                    
Account Value $ 15,677   15,642   13,798   14,280   15,769   9,818 11,261 11,824 $ 9,750          
EuroPacific Growth Fund® - Class F-1 [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name EuroPacific Growth Fund — Class F-1                                    
Account Value $ 16,170   16,181   14,316   14,853   16,449   10,268 11,808 12,431   10,300   9,140   10,000
EuroPacific Growth Fund® - Class F-2 [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name EuroPacific Growth Fund — Class F-2                                    
Account Value $ 16,623   16,586   14,632   15,141   16,719   10,409 11,938 12,534   10,354   9,164   10,000
EuroPacific Growth Fund® - Class F-3 [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name EuroPacific Growth Fund — Class F-3                                    
Account Value $ 16,823   16,769   14,776   15,273   16,847   10,479 12,004 12,590     $ 10,000      
EuroPacific Growth Fund® - Class 529-A [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name EuroPacific Growth Fund — Class 529-A (with sales charge)                                    
Account Value $ 15,584   15,593   13,795   14,319   15,851   9,897 11,383 11,987   9,930   8,816   9,650
EuroPacific Growth Fund® - Class 529-C [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name EuroPacific Growth Fund — Class 529-C (with sales charge)                                    
Account Value $ 15,540   15,550   13,756   14,279   15,807   9,869 11,438 12,133   10,131   9,065   10,000
EuroPacific Growth Fund® - Class 529-E [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name EuroPacific Growth Fund — Class 529-E                                    
Account Value $ 15,784   15,828   14,035   14,599   16,202   10,138 11,686 12,332   10,243   9,114   10,000
EuroPacific Growth Fund® - Class 529-T [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name EuroPacific Growth Fund — Class 529-T (with sales charge)                                    
Account Value $ 15,614   15,590   13,757   14,242   15,736   9,802 11,250 11,819 9,750          
EuroPacific Growth Fund® - Class 529-F-1 [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name EuroPacific Growth Fund — Class 529-F-1                                    
Account Value $ 16,480   16,464   14,537   15,060   16,645   10,369 11,900 12,502   10,335   9,156   10,000
EuroPacific Growth Fund® - Class 529-F-2 [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name EuroPacific Growth Fund — Class 529-F-2                                    
Account Value $ 11,976 $ 12,561 11,951 $ 10,082 10,542 $ 8,437 10,910 $ 12,578 12,050 $ 10,000                  
EuroPacific Growth Fund® - Class 529-F-3 [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name EuroPacific Growth Fund — Class 529-F-3                                    
Account Value $ 12,004 12,587 11,973 10,100 10,556 8,448 10,922 12,589 12,054 10,000                  
EuroPacific Growth Fund® - Class R-1 [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name EuroPacific Growth Fund — Class R-1                                    
Account Value $ 15,040   15,159   13,504   14,112   15,739   9,897 11,465 12,160   10,149   9,073   10,000
EuroPacific Growth Fund® - Class R-2 [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name EuroPacific Growth Fund — Class R-2                                    
Account Value $ 15,061   15,178   13,520   14,125   15,752   9,905 11,472 12,167   10,153   9,075   10,000
EuroPacific Growth Fund® - Class R-2E [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name EuroPacific Growth Fund — Class R-2E                                    
Account Value $ 15,520   15,595   13,851   14,433   16,052   10,065 11,622 12,292   10,227   9,111   10,000
EuroPacific Growth Fund® - Class R-3 [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name EuroPacific Growth Fund — Class R-3                                    
Account Value $ 15,741   15,792   14,007   14,573   16,179   10,128 11,680 12,329   10,243   9,113   10,000
EuroPacific Growth Fund® - Class R-4 [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name EuroPacific Growth Fund — Class R-4                                    
Account Value $ 16,220   16,224   14,347   14,882   16,474   10,281 11,821 12,441   10,303   9,142   10,000
EuroPacific Growth Fund® - Class R-5E [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name EuroPacific Growth Fund — Class R-5E                                    
Account Value $ 17,126   17,098   15,088   15,622   17,260   10,751 12,332 12,952   10,703     $ 10,000  
EuroPacific Growth Fund® - Class R-5 [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name EuroPacific Growth Fund — Class R-5                                    
Account Value $ 16,719   16,674   14,698   15,200   16,777   10,437 11,963 12,553   10,367   9,168   10,000
EuroPacific Growth Fund® - Class R-6 [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name EuroPacific Growth Fund — Class R-6                                    
Account Value $ 16,800   16,744   14,755   15,252   16,825   10,464 11,987 12,572   10,375   9,174   10,000
MSCI ACWI (All Country World Index) ex USA [Member]                                      
Account Value [Line Items]                                      
Line Graph and Table Measure Name MSCI ACWI (All Country World Index) ex USA                                    
Account Value $ 16,255 $ 14,301 $ 15,322 $ 11,409 $ 13,528 $ 9,477 $ 14,251 $ 12,664 $ 14,466 $ 10,000 $ 9,682 $ 11,468 $ 11,972 $ 10,000 $ 10,274 $ 10,000 $ 9,081 $ 10,000 $ 10,000