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REGULATORY CAPITAL MATTERS - Actual and Required Capital Amounts and Ratios (Detail) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
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Banc of California, Inc. |  |
Total risk-based capital ratio |  |
Total risk-based capital ratio, actual amount | $ 635,291 | $ 473,656
Total risk-based capital ratio, actual ratio | 11.18% | 11.28%
Total risk-based capital ratio, minimum capital requirements amount | $ 454,515 | $ 335,829
Total risk-based capital ratio, minimum capital requirements ratio | 8.00% | 8.00%
Tier 1 risk-based capital ratio |  |
Tier 1 risk-based capital ratio, actual amount | $ 608,644 | $ 442,307
Tier 1 risk-based capital ratio, actual ratio | 10.71% | 10.54%
Tier 1 risk-based capital ratio, minimum capital requirements amount | $ 340,887 | $ 167,914
Tier 1 risk-based capital ratio, minimum capital requirements ratio | 6.00% | 4.00%
Common equity tier 1 capital ratio |  |
Common equity tier 1 capital ratio, actual amount | $ 417,894 |
Common equity tier 1 capital ratio, actual ratio | 7.36% |
Common equity tier 1 capital ratio, minimum capital requirements amount | $ 255,665 |
Common equity tier 1 capital ratio, minimum capital requirements ratio | 4.50% |
Tier 1 leverage ratio |  |
Tier 1 leverage ratio, actual amount | $ 608,644 | $ 442,307
Tier 1 leverage ratio, actual ratio | 8.07% | 8.57%
Tier 1 leverage ratio, minimum capital requirements amount | $ 301,761 | $ 206,502
Tier 1 leverage ratio, minimum capital requirements ratio | 4.00% | 4.00%
Banc of California, NA |  |
Total risk-based capital ratio |  |
Total risk-based capital ratio, actual amount | $ 763,522 | $ 503,727
Total risk-based capital ratio, actual ratio | 13.45% | 12.04%
Total risk-based capital ratio, minimum capital requirements amount | $ 454,192 | $ 334,834
Total risk-based capital ratio, minimum capital requirements ratio | 8.00% | 8.00%
Total risk-based capital ratio, minimum required to be well capitalized under prompt corrective action provisions amount | $ 567,739 | $ 418,543
Total risk-based capital ratio, minimum required to be well capitalized under prompt corrective action provisions ratio | 10.00% | 10.00%
Tier 1 risk-based capital ratio |  |
Tier 1 risk-based capital ratio, actual amount | $ 725,922 | $ 472,378
Tier 1 risk-based capital ratio, actual ratio | 12.79% | 11.29%
Tier 1 risk-based capital ratio, minimum capital requirements amount | $ 340,644 | $ 167,417
Tier 1 risk-based capital ratio, minimum capital requirements ratio | 6.00% | 4.00%
Tier 1 risk-based capital ratio, minimum required to be well capitalized under prompt corrective action provisions amount | $ 454,192 | $ 251,126
Tier 1 risk-based capital ratio, minimum required to be well capitalized under prompt corrective action provisions ratio | 8.00% | 6.00%
Common equity tier 1 capital ratio |  |
Common equity tier 1 capital ratio, actual amount | $ 725,922 |
Common equity tier 1 capital ratio, actual ratio | 12.79% |
Common equity tier 1 capital ratio, minimum capital requirements amount | $ 255,483 |
Common equity tier 1 capital ratio, minimum capital requirements ratio | 4.50% |
Common equity tier 1 capital ratio, minimum required to be well capitalized under prompt corrective action provisions amount | $ 369,031 |
Common equity tier 1 capital ratio, minimum required to be well capitalized under prompt corrective action provisions ratio | 6.50% |
Tier 1 leverage ratio |  |
Tier 1 leverage ratio, actual amount | $ 725,922 | $ 472,378
Tier 1 leverage ratio, actual ratio | 9.64% | 9.17%
Tier 1 leverage ratio, minimum capital requirements amount | $ 301,232 | $ 206,095
Tier 1 leverage ratio, minimum capital requirements ratio | 4.00% | 4.00%
Tier 1 leverage ratio, minimum required to be well capitalized under prompt corrective action provisions amount | $ 376,540 | $ 257,619
Tier 1 leverage ratio, minimum required to be well capitalized under prompt corrective action provisions ratio | 5.00% | 5.00%

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