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Regulatory Matters (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2020 | Dec. 31, 2019
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Preceding period of retained earnings used in calculation of dividend payable | 2 years |  |
Retained earnings | $ 1,168,301 |  | $ 1,184,183
Quarterly common stock dividend (in dollar per share) | $ 0.16 |  |
Pinnacle Financial |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Cash dividends paid to Pinnacle Financial by Pinnacle Bank | $ 44,100 |  |
Actual |  |  |
Total capital to risk weighted assets | 3,158,818 |  | 3,159,375
Tier I capital to risk weighted assets | 2,311,306 |  | 2,319,234
Common Equity Tier I capital to risk weighted assets | 2,311,184 |  | 2,319,112
Tier I capital to average assets | $ 2,311,306 | [1] | $ 2,319,234
Actual |  |  |
Total capital to risk weighted assets (as percent) | 12.80% |  | 13.20%
Tier I capital to risk weighted assets (as percent) | 9.40% |  | 9.70%
Common Equity Tier I capital to risk weighted assets (as percent) | 9.40% |  | 9.70%
Tier I capital to average assets (as percent) | 8.80% | [1] | 9.10%
Minimum Capital Requirement |  |  |
Total capital to risk weighted assets | $ 1,973,843 |  | $ 1,912,885
Tier I capital to risk weighted assets | 1,480,382 |  | 1,434,664
Common Equity Tier I capital | 1,110,287 |  | 1,075,998
Tier I capital to average assets | $ 1,048,902 | [1] | $ 1,021,836
Minimum Capital Requirement |  |  |
Total capital to risk weighted assets (as percent) | 8.00% |  | 8.00%
Tier I capital to risk weighted assets (as percent) | 6.00% |  | 6.00%
Common Equity Tier I capital to risk weighted assets (as percent) | 4.50% |  | 4.50%
Tier I capital to average assets (as percent) | 4.00% | [1] | 4.00%
Minimum To Be Well-Capitalized Under Prompt Corrective Action Regulations |  |  |
Total capital to risk weighted assets | $ 2,467,303 |  | $ 2,391,106
Tier I capital to risk weighted assets | $ 1,973,843 |  | $ 1,912,885
Minimum To Be Well-Capitalized Under Prompt Corrective Action Regulations |  |  |
Total capital to risk weighted assets (as percent) | 10.00% |  | 10.00%
Tier I capital to risk weighted assets (as percent) | 8.00% |  | 8.00%
Pinnacle Bank |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Retained earnings | $ 571,300 |  |
Actual |  |  |
Total capital to risk weighted assets | 2,993,005 |  | $ 2,906,853
Tier I capital to risk weighted assets | 2,694,493 |  | 2,679,713
Common Equity Tier I capital to risk weighted assets | 2,694,370 |  | 2,679,590
Tier I capital to average assets | $ 2,694,493 | [1] | $ 2,679,713
Actual |  |  |
Total capital to risk weighted assets (as percent) | 12.20% |  | 12.20%
Tier I capital to risk weighted assets (as percent) | 11.00% |  | 11.20%
Common Equity Tier I capital to risk weighted assets (as percent) | 11.00% |  | 11.20%
Tier I capital to average assets (as percent) | 10.30% | [1] | 10.50%
Minimum Capital Requirement |  |  |
Total capital to risk weighted assets | $ 1,968,039 |  | $ 1,906,839
Tier I capital to risk weighted assets | 1,476,029 |  | 1,430,129
Common Equity Tier I capital | 1,107,022 |  | 1,072,597
Tier I capital to average assets | $ 1,047,399 | [1] | $ 1,019,210
Minimum Capital Requirement |  |  |
Total capital to risk weighted assets (as percent) | 8.00% |  | 8.00%
Tier I capital to risk weighted assets (as percent) | 6.00% |  | 6.00%
Common Equity Tier I capital to risk weighted assets (as percent) | 4.50% |  | 4.50%
Tier I capital to average assets (as percent) | 4.00% | [1] | 4.00%
Minimum To Be Well-Capitalized Under Prompt Corrective Action Regulations |  |  |
Total capital to risk weighted assets | $ 2,460,049 |  | $ 2,383,549
Tier I capital to risk weighted assets | 1,968,039 |  | 1,906,839
Common Equity Tier I capital to risk weighted assets | 1,599,032 |  | 1,549,307
Tier I capital to average assets | $ 1,309,248 | [1] | $ 1,274,012
Minimum To Be Well-Capitalized Under Prompt Corrective Action Regulations |  |  |
Total capital to risk weighted assets (as percent) | 10.00% |  | 10.00%
Tier I capital to risk weighted assets (as percent) | 8.00% |  | 8.00%
Common Equity Tier I capital to risk weighted assets (as percent) | 6.50% |  | 6.50%
Tier I capital to average assets (as percent) | 5.00% | [1] | 5.00%
[1] | (*) Average assets for the above calculations were based on the most recent quarter.

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