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Goodwill And Other Intangible Assets - Schedule of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Beginning balance	$ 452,390	$ 497,267
Goodwill impairment	0	(44,877)	$ 0
Change in goodwill	0
Ending balance	452,390	452,390	497,267
Community Banking Reporting Unit
Goodwill [Roll Forward]
Beginning balance	256,323	256,323
Goodwill impairment		0
Change in goodwill	0
Ending balance	256,323	256,323	256,323
Wholesale Banking Reporting Unit
Goodwill [Roll Forward]
Beginning balance	171,636	171,636
Goodwill impairment		0
Change in goodwill	0
Ending balance	171,636	171,636	171,636
Consumer Mortgage Reporting Unit
Goodwill [Roll Forward]
Beginning balance	0	44,877
Goodwill impairment		(44,877)
Change in goodwill	0
Ending balance	0	0	44,877
Wealth Management Reporting Unit
Goodwill [Roll Forward]
Beginning balance	24,431	24,431
Goodwill impairment		0
Change in goodwill	0
Ending balance	$ 24,431	$ 24,431	$ 24,431

X

- 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

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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.

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