Regulatory Capital (Tables)

9 Months Ended

Sep. 30, 2014

Banking and Thrift [Abstract]

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations

Actual capital amounts and ratios and selected minimum regulatory thresholds for the Company and its bank subsidiaries, as of September 30, 2014 and December 31, 2013 are presented in the following tables:

	Actual				Adequately Capitalized				Well Capitalized
	Amount		Ratio		Amount		Ratio		Amount		Ratio
September 30, 2014
Total risk-based capital:
Consolidated	$	898,047	16.3	%	$	439,616	8.0	%	NA		NA
FIB	751,699		14.8		405,953		8.0		$	507,441	10.0	%
MWB	63,114		15.9		31,710		8.0		39,637		10.0	%
Tier 1 risk-based capital:
Consolidated	808,289		14.7		219,808		4.0		NA		NA
FIB	679,135		13.4		202,976		4.0		$	304,465	6.0
MWB	63,114		15.9		15,855		4.0		23,782		6.0
Leverage capital ratio:
Consolidated	808,289		10.4		310,206		4.0		NA		NA
FIB	679,135		9.0		302,110		4.0		$	377,638	5.0
MWB	63,114		10.8		23,461		4.0		$	29,327	5.0

	Actual				Adequately Capitalized				Well Capitalized
	Amount		Ratio		Amount		Ratio		Amount		Ratio
December 31, 2013
Total risk-based capital:
Consolidated	$	829,443	16.8	%	$	396,210	8.0	%	NA		NA
FIB	723,955		14.7		394,038		8.0		$	492,548	10.0	%
Tier 1 risk-based capital:
Consolidated	739,246		14.9		198,105		4.0		NA		NA
FIB	650,093		13.2		197,019		4.0		$	295,529	6.0
Leverage capital ratio:
Consolidated	739,246		10.1		293,414		4.0		NA		NA
FIB	650,093		8.9		292,199		4.0		$	365,248	5.0