v3.26.1
Schedule of Assets (Schedule of Assets (Held at End of Year II)) (Details) - EBP 004 [Member]
 12 Months Ended
Dec. 31, 2025
USD ($)
shares
Investment, Identifier [Axis]: Cohen And Steers Realty Shares Fund Class L  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Investment Issuer Name Extensible Enumeration Cohen & Steers Realty Shares Fund Class L [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Mutual Fund [Member]
Number of shares held | shares 2,317
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan Participant Directed [Member]
Assets held for investment $ 152,154
Investment, Identifier [Axis]: Dodge And Cox Global Bond Fund X  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Investment Issuer Name Extensible Enumeration Dodge & Cox Global Bond Fund X [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Mutual Fund [Member]
Number of shares held | shares 16,576
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan Participant Directed [Member]
Assets held for investment $ 186,478
Investment, Identifier [Axis]: Fidelity Extended Market Index Fund  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Investment Issuer Name Extensible Enumeration Fidelity Extended Market Index Fund [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Mutual Fund [Member]
Number of shares held | shares 26,272
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan Participant Directed [Member]
Assets held for investment $ 2,644,813
Investment, Identifier [Axis]: Fidelity International Index Fund  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Investment Issuer Name Extensible Enumeration Fidelity International Index Fund [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Mutual Fund [Member]
Number of shares held | shares 30,633
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan Participant Directed [Member]
Assets held for investment $ 1,862,473
Investment, Identifier [Axis]: First BanCorp Common Stock  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Asset Held For Investment Party In Interest true
Employee Benefit Plan Investment Issuer Name Extensible Enumeration First BanCorp. Common Stock [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Common Stock [Member]
Number of shares held | shares 63,701
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan Participant Directed [Member]
Assets held for investment $ 1,320,517
Investment, Identifier [Axis]: Schwab SAndP 500 Index Fund- Select S  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Asset Held For Investment Party In Interest true
Employee Benefit Plan Investment Issuer Name Extensible Enumeration Schwab S&P 500 Index Fund- Select S [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Mutual Fund [Member]
Number of shares held | shares 435,691
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan Participant Directed [Member]
Assets held for investment $ 7,642,025
Investment, Identifier [Axis]: Schwab Treasury Obligations Money Fund  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Asset Held For Investment Party In Interest true
Employee Benefit Plan Investment Issuer Name Extensible Enumeration Schwab Treasury Obligation Money Fund [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Money Market Fund [Member]
Number of shares held | shares 2,981,349
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan Participant Directed [Member]
Assets held for investment $ 2,981,349
Investment, Identifier [Axis]: State Street Institutional U.S. Government Money Market Fund  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Asset Held For Investment Party In Interest true
Employee Benefit Plan Investment Issuer Name Extensible Enumeration State Street Institutional U.S. Government Money Market Fund [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Money Market Fund [Member]
Number of shares held | shares 32,591
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan Participant Directed [Member]
Assets held for investment $ 32,591
Investment, Identifier [Axis]: Vanguard Inflation-Protected Securities Fund  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Investment Issuer Name Extensible Enumeration Vanguard Inflation-Protected Securities Fund [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Mutual Fund [Member]
Number of shares held | shares 6,570
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan Participant Directed [Member]
Assets held for investment $ 150,904
Investment, Identifier [Axis]: Vanguard Target Retirement 2020 Fund  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Investment Issuer Name Extensible Enumeration Vanguard Target Retirement 2020 Fund [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Mutual Fund [Member]
Number of shares held | shares 21,779
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Mutual Fund [Member]
Assets held for investment $ 597,829
Investment, Identifier [Axis]: Vanguard Target Retirement 2025 Fund  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Investment Issuer Name Extensible Enumeration Vanguard Target Retirement 2025 Fund [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Mutual Fund [Member]
Number of shares held | shares 36,155
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan Participant Directed [Member]
Assets held for investment $ 721,295
Investment, Identifier [Axis]: Vanguard Target Retirement 2030 Fund  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Investment Issuer Name Extensible Enumeration Vanguard Target Retirement 2030 Fund [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Mutual Fund [Member]
Number of shares held | shares 45,451
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan Participant Directed [Member]
Assets held for investment $ 1,923,936
Investment, Identifier [Axis]: Vanguard Target Retirement 2035 Fund  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Investment Issuer Name Extensible Enumeration Vanguard Target Retirement 2035 Fund [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Mutual Fund [Member]
Number of shares held | shares 30,529
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan Participant Directed [Member]
Assets held for investment $ 835,897
Investment, Identifier [Axis]: Vanguard Target Retirement 2040 Fund  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Investment Issuer Name Extensible Enumeration Vanguard Target Retirement 2040 Fund [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Mutual Fund [Member]
Number of shares held | shares 20,745
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan Participant Directed [Member]
Assets held for investment $ 1,036,204
Investment, Identifier [Axis]: Vanguard Target Retirement 2045 Fund  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Investment Issuer Name Extensible Enumeration Vanguard Target Retirement 2045 Fund [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Mutual Fund [Member]
Number of shares held | shares 45,752
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan Participant Directed [Member]
Assets held for investment $ 1,589,439
Investment, Identifier [Axis]: Vanguard Target Retirement 2050 Fund  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Investment Issuer Name Extensible Enumeration Vanguard Target Retirement 2050 Fund [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Mutual Fund [Member]
Number of shares held | shares 6,759
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan Participant Directed [Member]
Assets held for investment $ 400,662
Investment, Identifier [Axis]: Vanguard Target Retirement 2055 Fund  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Investment Issuer Name Extensible Enumeration Vanguard Target Retirement 2055 Fund [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Mutual Fund [Member]
Number of shares held | shares 9,905
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan Participant Directed [Member]
Assets held for investment $ 655,300
Investment, Identifier [Axis]: Vanguard Target Retirement 2060 Fund  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Investment Issuer Name Extensible Enumeration Vanguard Target Retirement 2060 Fund [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Mutual Fund [Member]
Number of shares held | shares 4,360
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan Participant Directed [Member]
Assets held for investment $ 265,866
Investment, Identifier [Axis]: Vanguard Target Retirement 2065 Fund  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Investment Issuer Name Extensible Enumeration Vanguard Target Retirement 2065 Fund [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Mutual Fund [Member]
Number of shares held | shares 6,177
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan Participant Directed [Member]
Assets held for investment $ 247,262
Investment, Identifier [Axis]: Vanguard Target Retirement Income Fund  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Investment Issuer Name Extensible Enumeration Vanguard Target Retirement Income Fund [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Mutual Fund [Member]
Number of shares held | shares 24,953
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan Participant Directed [Member]
Assets held for investment $ 346,103
Investment, Identifier [Axis]: Vanguard Total Bond Market Index Fund  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Investment Issuer Name Extensible Enumeration Vanguard Total Bond Market Index Fund [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Mutual Fund [Member]
Number of shares held | shares 0.1
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan Participant Directed [Member]
Assets held for investment $ 1
Investment, Identifier [Axis]: Vanguard Total Bond Market Index Fund Institutional Shares  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Employee Benefit Plan Investment Issuer Name Extensible Enumeration Vanguard Total Bond Market Index Fund Institutional Shares [Member]
Employee Benefit Plan Investment Type Extensible Enumeration Mutual Fund [Member]
Number of shares held | shares 185,473
Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan Participant Directed [Member]
Assets held for investment $ 1,812,073
Common Stock [Member]  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Assets held for investment 1,320,517
Mutual Funds and Money Market Funds [Member]  
Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items]  
Assets held for investment $ 26,084,654