Regulatory Capital Requirements (Details) $ in Thousands	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
OFG Bancorp
Amount
Actual - Total capital to risk-weighted assets	$ 1,086,897	$ 1,096,766
Actual - Tier 1 capital to risk-weighted assets	999,284	1,010,945
Actual - Common equity tier 1 capital to risk-weighted assets	964,284	894,075
Actual - Tier 1 capital to average total assets	999,284	1,010,945
Minimum Capital Requirement - Total capital to risk-weighted assets	735,512	717,974
Minimum Capital Requirement - Tier 1 capital to risk-weighted assets	595,414	581,217
Minimum Capital Requirement - Common equity tier 1 capital to risk-weighted assets	490,341	478,649
Minimum Capital Requirement - Tier 1 capital to average total assets	412,359	392,424
Minimum to be Well Capitalized - Total capital to risk-weighted assets	700,488	683,785
Minimum to be Well Capitalized - Tier 1 capital to risk-weighted assets	560,390	547,028
Minimum to be Well Capitalized - Common equity tier 1 capital to risk-weighted assets	455,317	444,460
Minimum to be Well Capitalized - Tier 1 capital to average total assets	$ 515,449	$ 490,530
Ratio
Actual - total capital to risk-weighted assets	0.1552	0.1604
Actual - Tier 1 capital to risk-weighted assets	0.1427	0.1478
Actual - Common equity tier 1 capital to risk-weighted assets	13.77%	13.08%
Actual - Tier 1 capital to average total assets	0.0969	0.1030
Minimum Capital Requirement - Total capital to risk-weighted assets	0.1050	0.1050
Minimum Capital Requirement - Tier 1 capital to risk-weighted assets	0.0850	0.0850
Minimum Capital Requirement - Common equity tier 1 capital to risk-weighted assets	7.00%	7.00%
Minimum Capital Requirement - Tier 1 capital to average total assets	0.0400	0.0400
Minimum to be Well Capitalized - Total capital to risk-weighted assets	0.1000	0.1000
Minimum to be Well Capitalized - Tier 1 capital to risk-weighted assets	0.0800	0.0800
Minimum to be Well Capitalized - Common equity tier 1 capital to risk-weighted assets	6.50%	6.50%
Minimum to be Well Capitalized - Tier 1 capital to average total assets	0.0500	0.0500
Bank
Amount
Actual - Total capital to risk-weighted assets	$ 995,549	$ 1,044,275
Actual - Tier 1 capital to risk-weighted assets	908,717	956,845
Actual - Common equity tier 1 capital to risk-weighted assets	908,717	956,845
Actual - Tier 1 capital to average total assets	908,717	786,731
Minimum Capital Requirement - Total capital to risk-weighted assets	728,867	714,480
Minimum Capital Requirement - Tier 1 capital to risk-weighted assets	590,035	578,388
Minimum Capital Requirement - Common equity tier 1 capital to risk-weighted assets	485,911	476,320
Minimum Capital Requirement - Tier 1 capital to average total assets	409,855	390,304
Minimum to be Well Capitalized - Total capital to risk-weighted assets	694,159	680,457
Minimum to be Well Capitalized - Tier 1 capital to risk-weighted assets	555,327	544,366
Minimum to be Well Capitalized - Common equity tier 1 capital to risk-weighted assets	451,203	442,297
Minimum to be Well Capitalized - Tier 1 capital to average total assets	$ 512,319	$ 487,879
Ratio
Actual - total capital to risk-weighted assets	0.1434	0.1532
Actual - Tier 1 capital to risk-weighted assets	0.1309	0.1406
Actual - Common equity tier 1 capital to risk-weighted assets	13.09%	14.06%
Actual - Tier 1 capital to average total assets	0.0887	0.0981
Minimum Capital Requirement - Total capital to risk-weighted assets	0.1050	0.1050
Minimum Capital Requirement - Tier 1 capital to risk-weighted assets	0.0850	0.0850
Minimum Capital Requirement - Common equity tier 1 capital to risk-weighted assets	7.00%	7.00%
Minimum Capital Requirement - Tier 1 capital to average total assets	0.0400	0.0400
Minimum to be Well Capitalized - Total capital to risk-weighted assets	0.1000	0.1000
Minimum to be Well Capitalized - Tier 1 capital to risk-weighted assets	0.0800	0.0800
Minimum to be Well Capitalized - Common equity tier 1 capital to risk-weighted assets	6.50%	6.50%
Minimum to be Well Capitalized - Tier 1 capital to average total assets	0.0500	0.0500