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Regulatory Capital (Details) - USD ($) $ in Thousands | Oct. 12, 2018 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Regulatory Capital |  |  |
Distribution received through chartered amendment | $ 40,000 |  |
Total Capital (to Risk Weighted Assets), Amount |  |  |
Actual, Amount |  | $ 1,036,143 | $ 894,572
Minimum Capital Requirement, Amount |  | 590,826 | 482,638
Minimum To Be Well Capitalized, Amount |  | $ 738,532 | $ 603,297
Total Capital (to Risk Weighted Assets), Ratio |  |  |
Actual, Ratio (as a percent) |  | 14.03% | 14.83%
Minimum Capital Requirement, Ratio (as a percent) |  | 8.00% | 8.00%
Minimum To Be Well Capitalized, Ratio (as a percent) |  | 10.00% | 10.00%
Tier 1 Capital (to Risk Weighted Assets), Amount |  |  |
Actual, Amount |  | $ 922,395 | $ 783,924
Minimum Capital Requirement, Amount |  | 443,120 | 361,978
Minimum To Be Well Capitalized, Amount |  | $ 590,826 | $ 482,638
Tier 1 Capital (to Risk Weighted Assets), Ratio |  |  |
Actual, Ratio (as a percent) |  | 12.49% | 12.99%
Minimum Capital Requirement, Ratio (as a percent) |  | 6.00% | 6.00%
Minimum To Be Well Capitalized, Ratio (as a percent) |  | 8.00% | 8.00%
Common Equity Tier 1 Capital (to Risk Weighted Assets), Amount |  |  |
Actual, Amount |  | $ 848,395 | $ 709,924
Minimum Capital Requirement, Amount |  | 332,340 | 271,484
Minimum To Be Well Capitalized, Amount |  | $ 480,046 | $ 392,143
Common Equity Tier 1 Capital (to Risk Weighted Assets), Ratio |  |  |
Actual, Ratio (as a percent) |  | 11.49% | 11.77%
Minimum Capital Requirement, Ratio (as a percent) |  | 4.50% | 4.50%
Minimum To Be Well Capitalized, Ratio (as a percent) |  | 6.50% | 6.50%
Tier 1 Capital (to Average Assets), Amount |  |  |
Actual, Amount |  | $ 922,395 | $ 783,924
Minimum Capital Requirement, Amount |  | $ 373,360 | $ 302,704
Tier 1 Capital (to Average Assets), Ratio |  |  |
Actual, Ratio (as a percent) |  | 9.88% | 10.36%
Minimum Capital Requirement, Ratio (as a percent) |  | 4.00% | 4.00%
Busey Bank |  |  |
Total Capital (to Risk Weighted Assets), Amount |  |  |
Actual, Amount |  | $ 1,099,449 | $ 854,351
Minimum Capital Requirement, Amount |  | 589,681 | 481,701
Minimum To Be Well Capitalized, Amount |  | $ 737,101 | $ 602,126
Total Capital (to Risk Weighted Assets), Ratio |  |  |
Actual, Ratio (as a percent) |  | 14.92% | 14.19%
Minimum Capital Requirement, Ratio (as a percent) |  | 8.00% | 8.00%
Minimum To Be Well Capitalized, Ratio (as a percent) |  | 10.00% | 10.00%
Tier 1 Capital (to Risk Weighted Assets), Amount |  |  |
Actual, Amount |  | $ 1,045,701 | $ 803,703
Minimum Capital Requirement, Amount |  | 442,261 | 361,276
Minimum To Be Well Capitalized, Amount |  | $ 589,681 | $ 481,701
Tier 1 Capital (to Risk Weighted Assets), Ratio |  |  |
Actual, Ratio (as a percent) |  | 14.19% | 13.35%
Minimum Capital Requirement, Ratio (as a percent) |  | 6.00% | 6.00%
Minimum To Be Well Capitalized, Ratio (as a percent) |  | 8.00% | 8.00%
Common Equity Tier 1 Capital (to Risk Weighted Assets), Amount |  |  |
Actual, Amount |  | $ 1,045,701 | $ 803,703
Minimum Capital Requirement, Amount |  | 331,696 | 270,957
Minimum To Be Well Capitalized, Amount |  | $ 479,116 | $ 391,382
Common Equity Tier 1 Capital (to Risk Weighted Assets), Ratio |  |  |
Actual, Ratio (as a percent) |  | 14.19% | 13.35%
Minimum Capital Requirement, Ratio (as a percent) |  | 4.50% | 4.50%
Minimum To Be Well Capitalized, Ratio (as a percent) |  | 6.50% | 6.50%
Tier 1 Capital (to Average Assets), Amount |  |  |
Actual, Amount |  | $ 1,045,701 | $ 803,703
Minimum Capital Requirement, Amount |  | 373,639 | 302,232
Minimum To Be Well Capitalized, Amount |  | $ 467,049 | $ 377,789
Tier 1 Capital (to Average Assets), Ratio |  |  |
Actual, Ratio (as a percent) |  | 11.19% | 10.64%
Minimum Capital Requirement, Ratio (as a percent) |  | 4.00% | 4.00%
Minimum To Be Well Capitalized, Ratio (as a percent) |  | 5.00% | 5.00%

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