Income Taxes - Differences Between Tax Basis of Assets and Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Deferred tax assets:
Allowance for credit losses	$ 86,628	$ 81,251
Deferred compensation	6,448	7,619
Stock compensation	5,344	6,803
Non-accrual interest income	1,786	1,463
Real estate owned	70	79
Unrealized loss on investment securities, available-for-sale	62,211	81,493
Loan discounts	3,689	5,119
Investments	23,580	25,789
Other	19,084	14,691
Gross deferred tax assets	208,840	224,307
Deferred tax liabilities:
Accelerated depreciation on premises and equipment	0	1,477
Tax basis on acquisitions	6,691	4,061
Core deposit intangibles	9,610	11,021
FHLB dividends	2,835	2,351
Other	13,075	8,233
Gross deferred tax liabilities	32,211	27,143
Net deferred tax assets	$ 176,629	$ 197,164

Deferred tax assets loan discount.

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Amount of Deferred Tax Assets Non Accrual Interest Income.

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Deferred tax assets real estate owned.

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Deferred tax liabilities deferred expense accelerated depreciation on premises and equipment.

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Deferred tax liabilities FHLB dividends.

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Deferred Tax Liabilities, Tax Basis on Acquisitions

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Amount of deferred tax liability attributable to taxable temporary differences.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from investments (excludes investments in subsidiaries and equity method investments).

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from compensation and benefits costs.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary difference from allowance for credit loss on financing receivable.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary difference from unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill.

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Amount of deferred tax liability attributable to taxable temporary differences classified as other.

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