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Intangible Assets and Goodwill - Summary of Goodwill by Business Segment (Detail) $ in Thousands | 3 Months Ended
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Mar. 31, 2022 USD ($)
Goodwill [Line Items] |
Balance at beginning of period | $ 149,922
Acquisitions | 26,641
Balance at beginning and end of period | 176,563
Metropolitan Banks [Member] |
Goodwill [Line Items] |
Balance at beginning of period | 13,767
Balance at beginning and end of period | 13,767
Community Banks [Member] |
Goodwill [Line Items] |
Balance at beginning of period | 61,212
Balance at beginning and end of period | 61,212
Pegasus [Member] |
Goodwill [Line Items] |
Balance at beginning of period | 68,855
Balance at beginning and end of period | 68,855
Worthington [Member] |
Goodwill [Line Items] |
Balance at beginning of period | 0
Acquisitions | 26,641
Balance at beginning and end of period | 26,641
Other Financial Services [Member] |
Goodwill [Line Items] |
Balance at beginning of period | 5,464
Balance at beginning and end of period | 5,464
Executive, Operations & Support [Member] |
Goodwill [Line Items] |
Balance at beginning of period | 624
Balance at beginning and end of period | $ 624

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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://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)(1)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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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 -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
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