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v3.3.1.900

Shareholders' Equity, Dividends Restrictions and Other Regulatory Matters (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 USD ($) vote shares | Dec. 31, 2014 USD ($) shares | Dec. 31, 2013 USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Trust Preferred Securities included in Tier 1 capital | $ 32,100 | $ 128,500 |
Capital required for common equity Tier 1 capital to risk-weighted assets | 4.50% |  |
Tier 1 Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets | 6.00% |  |
Capital Required for Capital Adequacy to Risk Weighted Assets | 8.00% |  |
Leverage Capital Required Ratio To Tangible Assets | 4.00% |  |
Percent Of Trust Preferred Securities Excluded From Tier One Starting In 2013 | 75.00% |  |
Remaining Percent of Trust Preferred Securities Excluded from Tier One After 2015 | 25.00% |  |
Tier 2 capital | $ 6,000 | $ 9,000 |
Subordinated Debt, Annual Tier 2 Discount Percentage | 20.00% |  |
Maximum Undivided Profits Elgible For Dividend Payment Without Changing Well Capitalized Status | $ 902,600 |  |
Average Required Maintence Of Non Interst Bearing Reserve Balance | $ 531,600 |  |
Capital Conservation Buffer, Annual Percentage Increase | 0.625% |  |
Capital Conservation Buffer | 2.50% |  |
Common Class A [Member] |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Votes per share of common stock | vote | 1 |  |
Stock Repurchase Program, Number of Shares Authorized to be Repurchased | shares | 100,000 |  |
Stock Repurchased During Period, Shares | shares |  | 167,600 |
Class B Common Stock |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Votes per share of common stock | vote | 16 |  |
Stock Repurchased and Retired During Period, Shares | shares | 0 | 45,900 |
Parent |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Dividend Income, Banking Subsidiaries | $ 75,006 | $ 82,419 | $ 131,006
BancShares [Member] |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Tier 1 Capital for Capital Adequacy | 2,831,242 | 2,690,324 |
Capital Required for Capital Adequacy | 3,140,212 | 2,904,123 |
Leverage Capital Required for Capital Adequacy | $ 2,831,242 | $ 2,690,324 |
Tier 1 Risk Based Capital to Risk Weighted Assets | 12.65% | 13.61% |
Capital to Risk Weighted Assets | 14.03% | 14.69% |
Leverage Capital to Average Assets | 8.96% | 8.91% |
Tier 1 Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets | 8.00% | 6.00% |
Common equity Tier 1 | $ 2,799,163 |  |
Common equity Tier 1 to risk-weighted assets | 12.50965% |  |
Common equity Tier 1 required to be well capitalized to risk-weighted assets | 6.50% |  |
Capital Required to be Well Capitalized | 10.00% | 10.00% |
Leverage Capital Required to be Well Capitalized to Average Assets | 5.00% | 5.00% |
FCB-SC [Member] [Domain] |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Tier 1 Capital for Capital Adequacy |  | $ 653,515 |
Capital Required for Capital Adequacy |  | 657,475 |
Leverage Capital Required for Capital Adequacy |  | $ 653,515 |
Tier 1 Risk Based Capital to Risk Weighted Assets |  | 15.11% |
Capital to Risk Weighted Assets |  | 15.20% |
Leverage Capital to Average Assets |  | 7.89% |
Tier 1 Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets |  | 6.00% |
Capital Required to be Well Capitalized |  | 10.00% |
Leverage Capital Required to be Well Capitalized to Average Assets |  | 5.00% |
FCB [Member] |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Tier 1 Capital for Capital Adequacy | $ 2,821,475 | $ 2,019,595 |
Capital Required for Capital Adequacy | 3,038,070 | 2,212,163 |
Leverage Capital Required for Capital Adequacy | $ 2,821,475 | $ 2,019,595 |
Tier 1 Risk Based Capital to Risk Weighted Assets | 12.64% | 13.12% |
Capital to Risk Weighted Assets | 13.61% | 14.37% |
Leverage Capital to Average Assets | 8.95% | 9.30% |
Tier 1 Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets | 8.00% | 6.00% |
Common equity Tier 1 | $ 2,821,475 |  |
Common equity Tier 1 to risk-weighted assets | 12.63988% |  |
Common equity Tier 1 required to be well capitalized to risk-weighted assets | 6.50% |  |
Capital Required to be Well Capitalized | 10.00% | 10.00% |
Leverage Capital Required to be Well Capitalized to Average Assets | 5.00% | 5.00% |
FCB [Member] | Parent |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Dividends from subsidiaries | $ 75,006 | $ 30,000 |

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