Capital Requirements And Other Regulatory Matters (Tables)

12 Months Ended

Dec. 31, 2011

Capital Requirements And Other Regulatory Matters [Abstract]

Actual Capital Amounts And Ratios

	Actual					Minimum					Well Capitalized
(dollars in thousands)	Amount		Ratio			Amount		Ratio			Amount		Ratio
December 31, 2011
Tier 1 leverage capital:
IBERIABANK Corporation	$	1,164,801		10.45	%	$	445,905		4.00	%	$	N/A		N/A	%
IBERIABANK		997,277		9.00			443,165		4.00			553,956		5.00
Tier 1 risk-based capital:
IBERIABANK Corporation		1,164,801		14.94			311,908		4.00			N/A		N/A
IBERIABANK		997,277		12.88			309,802		4.00			464,703		6.00
Total risk-based capital:
IBERIABANK Corporation		1,263,496		16.20			623,816		8.00			N/A		N/A
IBERIABANK		1,095,322		14.14			619,604		8.00			774,505		10.00
December 31, 2010
Tier 1 leverage capital:
IBERIABANK Corporation	$	1,132,777		11.24	%	$	403,057		4.00	%	$	N/A		N/A	%
IBERIABANK		690,771		8.14			339,330		4.00			424,162		5.00
Tier 1 risk-based capital:
IBERIABANK Corporation		1,132,777		18.48			245,236		4.00			N/A		N/A
IBERIABANK		690,771		14.39			192,025		4.00			288,037		6.00
Total risk-based capital:
IBERIABANK Corporation		1,210,180		19.74			490,472		8.00			N/A		N/A
IBERIABANK		751,481		15.65			384,049		8.00			480,062		10.00