Goodwill	9 Months Ended
Sep. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	GoodwillThe carrying amount of goodwill was $155.2 million as of September 30, 2022 and $154.6 million as of December 31, 2021. During the three and nine months ended September 30, 2022 and prior to the end of the one year measurement period related to the purchase and assumption of certain assets and liabilities from TCF, Horizon Bank recorded an adjustment of $639,000 which increased goodwill and decreased other assets acquired in the transaction. There were no changes in the carrying amount of goodwill for the three and nine months ended September 30, 2021. Goodwill is assessed for impairment annually, or more frequently if events occur or circumstances change that indicate an impairment may exist. When assessing goodwill for impairment, first, a qualitative assessment can be made to determine whether it is more likely than not that the estimated fair value of a reporting unit is less than its estimated carrying value. If the results of the qualitative assessment are not conclusive, a quantitative goodwill test is performed. Alternatively, a quantitative goodwill test can be performed without performing a qualitative assessment. Goodwill was assessed for impairment using a qualitative analysis as of September 30, 2022 which resulted in no goodwill impairment charges for the nine months ended September 30, 2022.

Goodwill

9 Months Ended

Sep. 30, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

GoodwillThe carrying amount of goodwill was $155.2 million as of September 30, 2022 and $154.6 million as of December 31, 2021. During the three and nine months ended September 30, 2022 and prior to the end of the one year measurement period related to the purchase and assumption of certain assets and liabilities from TCF, Horizon Bank recorded an adjustment of $639,000 which increased goodwill and decreased other assets acquired in the transaction. There were no changes in the carrying amount of goodwill for the three and nine months ended September 30, 2021. Goodwill is assessed for impairment annually, or more frequently if events occur or circumstances change that indicate an impairment may exist. When assessing goodwill for impairment, first, a qualitative assessment can be made to determine whether it is more likely than not that the estimated fair value of a reporting unit is less than its estimated carrying value. If the results of the qualitative assessment are not conclusive, a quantitative goodwill test is performed. Alternatively, a quantitative goodwill test can be performed without performing a qualitative assessment. Goodwill was assessed for impairment using a qualitative analysis as of September 30, 2022 which resulted in no goodwill impairment charges for the nine months ended September 30, 2022.