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Regulatory Matters (Details) - USD ($) $ / shares in Units, shares in Thousands | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2020 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Jan. 01, 2022
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 |  |  | $ 3,175,777,000 | $ 2,784,927,000 |  |
SEC Schedule, 12-04, Cash Dividends Paid to Registrant, Consolidated Subsidiaries |  |  | $ 109,900,000 |  |  |
Dividends Payable, Amount Per Share |  |  | $ 0.24 |  | $ 0.22 |
Preferred Stock, Dividend Rate, Per-Dollar-Amount |  |  | $ 16.88 |  |  |
Preferred Stock, Dividend Per Depositary Share |  |  | $ 0.422 |  |  |
Depositary Shares |  | 9,000 |  |  |  |
ASU 2016-13 Cumulative Transition Adjustments |  |  |  |  |  | $ 68,000,000
Pinnacle Bank |  |  |  |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |  |  |  |
Retained earnings |  |  | 1,300,000,000 |  |  |
Actual Amount |  |  |  |  |  |
Total capital to risk weighted assets: |  |  | 5,246,472,000 | 4,797,278,000 |  |
Tier I capital to risk weighted assets: |  |  | 4,851,336,000 | 4,465,282,000 |  |
Common Equity Tier 1 capital to risk weighted assets: |  |  | 4,851,213,000 | 4,465,159,000 |  |
Tier I capital to average assets (*): | [1] |  | $ 4,851,336,000 | $ 4,465,282,000 |  |
Actual Ratios |  |  |  |  |  |
Total capital to risk weighted assets: |  |  | 12.50% | 12.00% |  |
Tier I capital to risk weighted assets: |  |  | 11.60% | 11.10% |  |
Common equity Tier 1 capital: |  |  | 11.60% | 11.10% |  |
Tier I capital to average assets (*): | [1] |  | 9.80% | 9.70% |  |
Minimum Capital Requirement |  |  |  |  |  |
Total capital to risk weighted assets: |  |  | $ 3,352,352,000 | $ 3,207,699,000 |  |
Tier I capital to risk weighted assets: |  |  | 2,514,264,000 | 2,405,774,000 |  |
Common equity Tier 1 capital to risk weighted assets: |  |  | 1,885,698,000 | 1,804,330,000 |  |
Tier I capital to average assets (*): | [1] |  | $ 1,984,252,000 | $ 1,847,972,000 |  |
Minimum Capital Requirement - Ratios |  |  |  |  |  |
Total capital to risk weighted assets: |  |  | 8.00% | 8.00% |  |
Tier I capital to risk weighted assets: |  |  | 6.00% | 6.00% |  |
Common equity Tier 1 risk based capital to risk weighted assets: |  |  | 4.50% | 4.50% |  |
Tier I capital to average assets (*): | [1] |  | 4.00% | 4.00% |  |
Minimum To Be Well Capitalized |  |  |  |  |  |
Total capital to risk weighted assets: |  |  | $ 4,190,440,000 | $ 4,009,623,000 |  |
Tier I capital to risk weighted assets: |  |  | 3,352,352,000 | 3,207,699,000 |  |
Common equity Tier 1 capital to risk weighted assets: |  |  | 2,723,786,000 | 2,606,255,000 |  |
Tier I capital to average assets (*): | [1] |  | $ 2,480,315,000 | $ 2,309,965,000 |  |
Minimum To Be Well Capitalized - Ratios |  |  |  |  |  |
Total capital to risk weighted assets: |  |  | 10.00% | 10.00% |  |
Tier I capital to risk weighted assets: |  |  | 8.00% | 8.00% |  |
Common equity Tier 1 capital to risk weighted assets: |  |  | 6.50% | 6.50% |  |
Tier I capital to average assets (*): | [1] |  | 5.00% | 5.00% |  |
Pinnacle Financial |  |  |  |  |  |
Actual Amount |  |  |  |  |  |
Total capital to risk weighted assets: |  |  | $ 5,515,492,000 | $ 5,115,755,000 |  |
Tier I capital to risk weighted assets: |  |  | 4,751,357,000 | 4,354,759,000 |  |
Common Equity Tier 1 capital to risk weighted assets: |  |  | 4,534,108,000 | 4,137,510,000 |  |
Tier I capital to average assets (*): | [1] |  | $ 4,751,357,000 | $ 4,354,759,000 |  |
Actual Ratios |  |  |  |  |  |
Total capital to risk weighted assets: |  |  | 13.10% | 12.70% |  |
Tier I capital to risk weighted assets: |  |  | 11.30% | 10.80% |  |
Common equity Tier 1 capital: |  |  | 10.80% | 10.30% |  |
Tier I capital to average assets (*): | [1] |  | 9.60% | 9.40% |  |
Minimum Capital Requirement |  |  |  |  |  |
Total capital to risk weighted assets: |  |  | $ 3,358,116,000 | $ 3,216,424,000 |  |
Tier I capital to risk weighted assets: |  |  | 2,518,587,000 | 2,412,318,000 |  |
Common equity Tier 1 capital to risk weighted assets: |  |  | 1,888,940,000 | 1,809,238,000 |  |
Tier I capital to average assets (*): | [1] |  | $ 1,989,495,000 | $ 1,853,213,000 |  |
Minimum Capital Requirement - Ratios |  |  |  |  |  |
Total capital to risk weighted assets: |  |  | 8.00% | 8.00% |  |
Tier I capital to risk weighted assets: |  |  | 6.00% | 6.00% |  |
Common equity Tier 1 risk based capital to risk weighted assets: |  |  | 4.50% | 4.50% |  |
Tier I capital to average assets (*): | [1] |  | 4.00% | 4.00% |  |
Minimum To Be Well Capitalized |  |  |  |  |  |
Total capital to risk weighted assets: |  |  | $ 4,197,645,000 | $ 4,020,530,000 |  |
Tier I capital to risk weighted assets: |  |  | $ 2,518,587,000 | $ 2,412,318,000 |  |
Minimum To Be Well Capitalized - Ratios |  |  |  |  |  |
Total capital to risk weighted assets: |  |  | 10.00% | 10.00% |  |
Tier I capital to risk weighted assets: |  |  | 6.00% | 6.00% |  |
[1] | Average assets for the above calculations were based on the most recent quarter.

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