Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

+ Details

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
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- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details

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- Details

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- Details

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Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands		3 Months Ended		12 Months Ended
	Jun. 14, 2019	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Goodwill, Impairment Loss				$ 0	$ 0	$ 0
Goodwill				$ 1,176,230	1,169,023
Huntington National Bank
Business Acquisition [Line Items]
Goodwill	$ 7,286
Bank Mutual [Member]
Business Acquisition [Line Items]
Goodwill		$ 2,000	$ 6,000		175,000
Diversified Insurance [Member]
Business Acquisition [Line Items]
Goodwill					10,000
Anderson Insurance Investment Agency [Domain]
Business Acquisition [Line Items]
Goodwill					$ 7,000