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Regulatory Capital (Tables) | 12 Months Ended
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Dec. 31, 2018
Banking and Thrift [Abstract] |
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations | The Company’s actual capital amounts and ratios and selected minimum regulatory thresholds and prompt corrective action provisions as of December 31, 2018 and 2017 are presented in the following tables:
| Actual |  | Adequately Capitalized Basel III Phase-In Schedule |  | Adequately Capitalized Basel III Fully Phased-In |  | Well Capitalized (1)
| Amount | Ratio |  | Amount | Ratio |  | Amount | Ratio |  | Amount | Ratio
December 31, 2018 |  |  |  |  |  |  |  |  |  |  |
Total risk-based capital: |  |  |  |  |  |  |  |  |  |  |
Consolidated | $ | 1,285.0 |  | 12.99 | % |  | $ | 976.6 |  | 9.875 | % |  | $ | 1,038.4 |  | 10.50 | % |  | $ | 989.0 |  | 10.00 | %
FIB | 1,184.5 |  | 12.01 |  |  | 973.7 |  | 9.875 |  |  | 1,035.3 |  | 10.50 |  |  | 986.0 |  | 10.00 |
Tier 1 risk-based capital: |  |  |  |  |  |  |  |  |  |  |
Consolidated | 1,212.0 |  | 12.26 |  |  | 778.8 |  | 7.875 |  |  | 840.6 |  | 8.50 |  |  | 791.2 |  | 8.00 |
FIB | 1,111.6 |  | 11.27 |  |  | 776.5 |  | 7.875 |  |  | 838.1 |  | 8.50 |  |  | 788.8 |  | 8.00 |
Common equity tier 1 risk-based capital: |  |  |  |  |  |  |  |  |  |  |
Consolidated | 1,127.8 |  | 11.40 |  |  | 630.5 |  | 6.375 |  |  | 692.3 |  | 7.00 |  |  | 642.8 |  | 6.50 |
FIB | 1,111.6 |  | 11.27 |  |  | 628.6 |  | 6.375 |  |  | 690.2 |  | 7.00 |  |  | 640.9 |  | 6.50 |
Leverage capital ratio: |  |  |  |  |  |  |  |  |  |  |
Consolidated | 1,212.0 |  | 9.47 |  |  | 511.9 |  | 4.00 |  |  | 511.9 |  | 4.00 |  |  | 639.9 |  | 5.00 |
FIB | 1,111.6 |  | 8.97 |  |  | 495.9 |  | 4.00 |  |  | 495.9 |  | 4.00 |  |  | 619.8 |  | 5.00 |
| Actual |  | Adequately Capitalized Basel III Phase-In Schedule |  | Adequately Capitalized Basel III Fully Phased-In |  | Well Capitalized (1)
| Amount | Ratio |  | Amount | Ratio |  | Amount | Ratio |  | Amount | Ratio
December 31, 2017 |  |  |  |  |  |  |  |  |  |  |
Total risk-based capital: |  |  |  |  |  |  |  |  |  |  |
Consolidated | $ | 1,112.5 |  | 12.76 | % |  | $ | 806.5 |  | 9.25 | % |  | $ | 915.5 |  | 10.50 | % |  | $ | 871.9 |  | 10.00 | %
FIB | 1,066.6 |  | 12.29 |  |  | 802.7 |  | 9.25 |  |  | 911.2 |  | 10.50 |  |  | 867.8 |  | 10.00 |
Tier 1 risk-based capital: |  |  |  |  |  |  |  |  |  |  |
Consolidated | 1,040.3 |  | 11.93 |  |  | 632.1 |  | 7.25 |  |  | 741.1 |  | 8.50 |  |  | 697.5 |  | 8.00 |
FIB | 994.4 |  | 11.46 |  |  | 629.1 |  | 7.25 |  |  | 737.6 |  | 8.50 |  |  | 694.2 |  | 8.00 |
Common equity tier 1 risk-based capital: |  |  |  |  |  |  |  |  |  |  |
Consolidated | 962.4 |  | 11.04 |  |  | 501.3 |  | 5.75 |  |  | 610.3 |  | 7.00 |  |  | 566.7 |  | 6.50 |
FIB | 994.4 |  | 11.46 |  |  | 499.0 |  | 5.75 |  |  | 607.4 |  | 7.00 |  |  | 564.1 |  | 6.50 |
Leverage capital ratio: |  |  |  |  |  |  |  |  |  |  |
Consolidated | 1,040.3 |  | 8.86 |  |  | 469.9 |  | 4.00 |  |  | 469.9 |  | 4.00 |  |  | 587.4 |  | 5.00 |
FIB | 994.4 |  | 8.48 |  |  | 469.1 |  | 4.00 |  |  | 469.1 |  | 4.00 |  |  | 586.3 |  | 5.00 |
(1) The ratios for the well capitalized requirement are only applicable to FIB. However, the Company manages its capital position as if the requirement applies to the consolidated entity and has presented the ratios as if they also applied on a consolidated basis.

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