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Allowance for Credit Losses - Summary of Activity in Allowance for Loan Losses (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss	$ 125,366	$ 121,522	$ 105,680	$ 85,376
Total allowance for credit losses
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss	120,741	118,430
Qualitative and forecast factor allowance
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss	86,833	84,291
Quantitative (Cohort) model allowance
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss	33,908	34,139
Allowance for individually evaluated loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss	$ 4,625	$ 3,092

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- Definition

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

+ 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph c
-Publisher SEC

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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