Business combination recognized identifiable assets acquired and liabilities assumed premium paid.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Number of branches.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Percentage of core deposits to total deposits.

+ References

No definition available.

+ Details

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- Definition

Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 25
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+ Details

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- Definition

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.

+ References

No definition available.

+ Details

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- Definition

For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the best estimate at the acquisition date of the contractual cash flows not expected to be collected, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)(3)
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+ Details

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- Definition

For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the gross contractual amounts receivable, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables.

+ References

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Period Type:	instant

- 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

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- Definition

Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

+ References

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+ 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

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10)(1))
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+ Details

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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- Details

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Business Combinations - Additional Information (Detail) $ in Thousands		12 Months Ended
	Aug. 10, 2018 USD ($)	Dec. 31, 2020 USD ($) Branch	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Jun. 30, 2019 Branch Banking
Business Acquisition [Line Items]
Number of branches owned by merger company \| Banking					10
Goodwill		$ 663,707	$ 663,707	$ 666,539
Merger related expenses		$ 0	6,447	16,404
Community Bank [Member]
Business Acquisition [Line Items]
Acquisition date	Aug. 10, 2018
Number of branches owned by merger company \| Branch		16			10
Acquired assets and assumed liabilities for cash	$ 180,719
Assets and assumed all of the liabilities, stock	722,767
Goodwill	547,144
Core deposit intangible assets	$ 52,200
Percentage of core deposits to total deposits	2.26%
Merger related expenses			$ 6,400	$ 16,400
Gross contractual amount receivable, as of acquisition date	$ 3,000,000
Contractual principal cash flows, loans not expected to be collected	$ 4,500