v3.26.1
General Information (Details)
 6 Months Ended
Jun. 30, 2026
ProQR Therapeutics Holding B.V.  
Disclosure of subsidiaries [line items]  
Proportion of ownership interest in subsidiary 100.00%
ProQR Therapeutics I B.V.  
Disclosure of subsidiaries [line items]  
Proportion of ownership interest in subsidiary 100.00%
ProQR Therapeutics II B.V.  
Disclosure of subsidiaries [line items]  
Proportion of ownership interest in subsidiary 100.00%
ProQR Therapeutics III B.V.  
Disclosure of subsidiaries [line items]  
Proportion of ownership interest in subsidiary 100.00%
ProQR Therapeutics IV B.V.  
Disclosure of subsidiaries [line items]  
Proportion of ownership interest in subsidiary 100.00%
ProQR Therapeutics V B.V.  
Disclosure of subsidiaries [line items]  
Proportion of ownership interest in subsidiary 100.00%
ProQR Therapeutics VI B.V.  
Disclosure of subsidiaries [line items]  
Proportion of ownership interest in subsidiary 100.00%
ProQR Therapeutics VII B.V.  
Disclosure of subsidiaries [line items]  
Proportion of ownership interest in subsidiary 100.00%
ProQR Therapeutics VIII B.V.  
Disclosure of subsidiaries [line items]  
Proportion of ownership interest in subsidiary 100.00%
ProQR Therapeutics IX B.V.  
Disclosure of subsidiaries [line items]  
Proportion of ownership interest in subsidiary 100.00%
ProQR Therapeutics I Inc.  
Disclosure of subsidiaries [line items]  
Proportion of ownership interest in subsidiary 100.00%