Regulatory Capital (Tables)

12 Months Ended

Dec. 31, 2013

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, 2013 and 2012 are presented in the following table:

	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

	Actual				Adequately Capitalized				Well Capitalized
	Amount		Ratio		Amount		Ratio		Amount		Ratio
December 31, 2012
Total risk-based capital:
Consolidated	$	748,431	15.6	%	$	384,014	8.0	%	NA		NA
FIB	697,695		14.6		382,245		8.0		$	477,806	10.0	%
Tier 1 risk-based capital:
Consolidated	652,929		13.6		192,007		4.0		NA		NA
FIB	622,466		13.0		191,122		4.0		$	286,683	6.0
Leverage capital ratio:
Consolidated	652,929		8.8		296,559		4.0		NA		NA
FIB	622,466		8.4		296,061		4.0		$	370,077	5.0