Regulatory Capital (Tables)

9 Months Ended

Sep. 30, 2019

Banking and Thrift [Abstract]

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations

Actual capital amounts and ratios for the Company and its subsidiary Bank, as of September 30, 2019 and December 31, 2018 are presented in the following tables: 

	Actual				Minimum Required for Capital Adequacy Purposes				For Capital Adequacy Purposes Plus Capital Conservation Buffer				Minimum to Be Well Capitalized Under Prompt Corrective Action Requirements(1)
September 30, 2019	Amount		Ratio		Amount		Ratio		Amount		Ratio		Amount		Ratio
Total risk-based capital:
Consolidated	$	1,460.2	13.71	%	$	851.9	8.000	%	$	1,118.1	10.50	%	$	1,064.9	10.00	%
FIB	1,308.6		12.33		849.0		8.000		1,114.3		10.50		1,061.3		10.00
Tier 1 risk-based capital:
Consolidated	1,385.2		13.01		638.9		6.000		905.2		8.50		851.9		8.00
FIB	1,233.7		11.62		636.8		6.000		902.1		8.50		849.0		8.00
Common equity tier 1 risk-based capital:
Consolidated	1,298.3		12.19		479.2		4.500		745.4		7.00		692.2		6.50
FIB	1,233.7		11.62		477.6		4.500		742.9		7.00		689.8		6.50
Leverage capital ratio:
Consolidated	1,385.2		9.96		556.2		4.000		556.2		4.00		695.3		5.00
FIB	1,233.7		8.96		550.5		4.000		550.5		4.00		688.1		5.00

	Actual				Minimum Required for Capital Adequacy Purposes				For Capital Adequacy Purposes Plus Capital Conservation Buffer				Minimum to Be Well Capitalized Under Prompt Corrective Action Requirements(1)
December 31, 2018	Amount		Ratio		Amount		Ratio		Amount		Ratio		Amount		Ratio
Total risk-based capital:
Consolidated	$	1,285.0	12.99	%	$	791.2	8.00	%	$	976.6	9.875	%	$	989.0	10.00	%
FIB	1,184.5		12.01		788.8		8.00		973.7		9.875		986.0		10.00
Tier 1 risk-based capital:
Consolidated	1,212.0		12.26		593.4		6.00		778.8		7.875		791.2		8.00
FIB	1,111.6		11.27		591.6		6.00		776.5		7.875		788.8		8.00
Common equity tier 1 risk-based capital:
Consolidated	1,127.8		11.40		445.0		4.50		630.5		6.375		642.8		6.50
FIB	1,111.6		11.27		443.7		4.50		628.6		6.375		640.9		6.50
Leverage capital ratio:
Consolidated	1,212.0		9.47		511.9		4.00		511.9		4.000		639.9		5.00
FIB	1,111.6		8.97		495.9		4.00		495.9		4.000		619.8		5.00

(1) The ratios for the requirements to be deemed “well capitalized” are only applicable to FIB. However, the Company manages its capital position as if the requirements apply to the consolidated entity and has presented the ratios as if they also applied on a consolidated basis.