Deposits - Additional Information (Detail) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Time Deposits	$ 987,188,000
Accrued interest payable on deposits	1,200,000	$ 4,600,000
Total deposits reclassified to loans due to overdrafts	277,000	241,000,000,000
Time Deposits of $250,000 or More
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Time Deposits	$ 208,527,000	$ 311,800,000

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.

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- Definition

Amount of accrued but unpaid interest on deposit liabilities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.15(5))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

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Amount of deposits held by the entity that have been reclassified as loan balances receivable, for example, but not limited to, overdrafts receivable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=116652737&loc=d3e64164-112818

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Amount of time deposit liabilities, including certificates of deposit.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
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