Regulatory Matters (Tables)

12 Months Ended

Dec. 31, 2013

Regulatory Capital Requirements [Abstract]

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations

								To Be Well Capitalized
					For Capital Adequacy			Under Prompt Corrective
	Actual				Purposes			Action Provisions:(2)
($ in Thousands)	Amount		Ratio(1)		Amount		Ratio(1)	Amount		Ratio(1)
As of December 31, 2013:
Associated Banc-Corp
Total Capital	$	2,184,884	13.09	%	$	1,335,532	³8.00%
Tier 1 Capital		1,975,182	11.83			667,766	³4.00%
Leverage		1,975,182	8.70			907,937	³4.00%
Associated Bank, N.A.
Total Capital	$	2,425,188	14.70	%	$	1,319,765	³8.00%	$	1,649,707	³ 10.00%
Tier 1 Capital		2,217,987	13.44			659,883	³4.00%		989,824	³ 6.00%
Leverage		2,217,987	9.90			896,419	³4.00%		1,120,524	³ 5.00%
As of December 31, 2012:
Associated Banc-Corp
Total Capital	$	2,167,954	13.42	%	$	1,291,923	³8.00%
Tier 1 Capital		1,938,806	12.01			645,962	³4.00%
Leverage		1,938,806	8.98			863,674	³4.00%
Associated Bank, N.A.
Total Capital	$	2,448,280	15.34	%	$	1,277,222	³8.00%	$	1,596,527	³ 10.00%
Tier 1 Capital		2,247,307	14.08			638,611	³4.00%		957,916	³ 6.00%
Leverage		2,247,307	10.53			853,553	³4.00%		1,066,941	³ 5.00%

• Total Capital ratio is defined as Tier 1 capital plus Tier 2 capital divided by total risk-weighted assets. The Tier 1 Capital ratio is defined as Tier 1 capital divided by total risk-weighted assets. The leverage ratio is defined as Tier 1 capital divided by the most recent quarter's average total assets.
•  Prompt corrective action provisions are not applicable at the bank holding company level