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Business Combinations - Additional Information (Details) $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Jan. 01, 2020 USD ($) | Jan. 31, 2019 USD ($) | Dec. 31, 2021 USD ($) property | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Business Acquisition [Line Items] |  |  |  |  |
Merger related expenses |  |  | $ 1,503 | $ 15,947 | $ 10,503
Weighted average useful life (years) |  |  | 10 years |  |
Two River Bancorp Acquisition |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Purchase accounting adjustments, assets | $ 1,111,621 |  |  |  |
Purchase accounting adjustments, loans | 940,072 |  |  |  |
Liabilities assumed, deposits | 941,750 |  |  |  |
Consideration paid | 197,050 |  |  |  |
Cash consideration paid for outstanding warrants and fractional shares | 48,400 |  |  |  |
Number of properties in lease agreements | property |  |  | 14 |  |
Core deposit intangible | 12,130 |  |  |  |
Country Bank Holding Company, Inc. Acquisition |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Purchase accounting adjustments, assets | 793,680 |  |  |  |
Purchase accounting adjustments, loans | 618,408 |  |  |  |
Liabilities assumed, deposits | 652,653 |  |  |  |
Consideration paid | 112,836 |  |  |  |
Number of properties in lease agreements | property |  |  | 5 |  |
Core deposit intangible | 2,117 |  |  |  |
Capital Bank |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Purchase accounting adjustments, assets |  | $ 494,416 |  |  |
Purchase accounting adjustments, loans |  | 307,300 |  |  |
Liabilities assumed, deposits |  | 449,018 |  |  |
Consideration paid |  | 76,834 |  |  |
Cash consideration paid for outstanding warrants and fractional shares |  | 353 |  |  |
Number of properties in lease agreements | property |  |  | 1 |  |
Core deposit intangible | $ 2,700 | $ 2,662 |  |  |

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- Definition Business combination recognized identifiable assets acquired and liabilities assumed loans. + References No definition available. + Details
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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=123586518&loc=d3e1043-128460 + Details
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