Acquisitions	9 Months Ended
Sep. 30, 2016
Business Combinations [Abstract]
Acquisitions	Acquisitions On February 17, 2015, the Corporation acquired Ahmann & Martin Co., a risk and employee benefits consulting firm based in Minnesota. The firm was merged into Associated Financial Group, LLC ("AFG"), the Corporation's insurance brokerage subsidiary. The Corporation's acquisition of Ahmann & Martin Co. enhanced the Corporation's ability to offer clients unique, comprehensive solutions to meet their insurance and financial risk management needs. The transaction was valued at approximately $48 million with the opportunity to increase the consideration by $8 million should certain contingencies be met over a defined period. The transaction was accounted for using the acquisition method of accounting and as such, assets acquired, liabilities assumed and consideration exchanged were recorded at their estimated fair value on the acquisition date. Goodwill from the acquisition represents the excess of the purchase price over the fair value of the net tangible and intangible assets acquired and is not deductible for tax purposes. As a result of the acquisition, the Corporation recorded goodwill of approximately $40 million and other intangible assets of approximately $12 million. Goodwill was assigned to the Corporation's Community, Consumer, and Business segment. See Note 8 for additional information on goodwill and other intangible assets. During the first quarter of 2016, the Corporation completed two small insurance acquisitions to complement its existing insurance and benefits related products and services provided by AFG. The Corporation recorded goodwill of $3 million and other intangibles of $1 million related to these insurance acquisitions. During the second quarter of 2016, Associated Banc-Corp announced that it has begun rebranding AFG. The rebranding follows the February 2015 acquisition of Ahmann & Martin Co. and two small insurance acquisitions during the first quarter of 2016. On September 12, 2016, Associated Banc-Corp announced the completion of state licensure filings, enabling AFG to officially rebrand its employee benefits, insurance and human resource consulting services business unit from AFG to Associated Benefits and Risk Consulting ("ABRC").

Acquisitions

9 Months Ended

Sep. 30, 2016

On February 17, 2015, the Corporation acquired Ahmann & Martin Co., a risk and employee benefits consulting firm based in Minnesota. The firm was merged into Associated Financial Group, LLC ("AFG"), the Corporation's insurance brokerage subsidiary. The Corporation's acquisition of Ahmann & Martin Co. enhanced the Corporation's ability to offer clients unique, comprehensive solutions to meet their insurance and financial risk management needs. The transaction was valued at approximately $48 million with the opportunity to increase the consideration by $8 million should certain contingencies be met over a defined period.

The transaction was accounted for using the acquisition method of accounting and as such, assets acquired, liabilities assumed and consideration exchanged were recorded at their estimated fair value on the acquisition date. Goodwill from the acquisition represents the excess of the purchase price over the fair value of the net tangible and intangible assets acquired and is not deductible for tax purposes. As a result of the acquisition, the Corporation recorded goodwill of approximately $40 million and other intangible assets of approximately $12 million. Goodwill was assigned to the Corporation's Community, Consumer, and Business segment. See Note 8 for additional information on goodwill and other intangible assets.

During the first quarter of 2016, the Corporation completed two small insurance acquisitions to complement its existing insurance and benefits related products and services provided by AFG. The Corporation recorded goodwill of $3 million and other intangibles of $1 million related to these insurance acquisitions.

During the second quarter of 2016, Associated Banc-Corp announced that it has begun rebranding AFG. The rebranding follows the February 2015 acquisition of Ahmann & Martin Co. and two small insurance acquisitions during the first quarter of 2016. On September 12, 2016, Associated Banc-Corp announced the completion of state licensure filings, enabling AFG to officially rebrand its employee benefits, insurance and human resource consulting services business unit from AFG to Associated Benefits and Risk Consulting ("ABRC").