Income Taxes (Tables)

12 Months Ended

Dec. 31, 2024

Income Tax Disclosure [Abstract]

Schedule of components of the provision for income taxes

Significant components of the provision for income taxes are as follows for the periods presented:

	Year Ended December 31,
	2024		2023		2022
Current
Federal	$	42,179	$	36,138	$	39,507
State	2,680		1,376		3,453
	44,859		37,514		42,960
Deferred
Federal	7,028		(1,187)		1,630
State	(2,379)		(3,818)		650
	4,649		(5,005)		2,280
	$	49,508	$	32,509	$	45,240

Schedule of reconciliation of income taxes computed at the United States federal statutory tax rates

The reconciliation of income taxes computed at the United States federal statutory tax rates to the provision for income taxes is as follows, for the periods presented:

	Year Ended December 31,
	2024		2023		2022
Tax at U.S. statutory rate	$	51,443	$	37,209	$	44,375
Increase (decrease) in taxes resulting from:
Tax-exempt interest income	(1,750)		(1,505)		(1,832)
BOLI income	(1,178)		(2,197)		(1,946)
Investment tax credits	(3,950)		(1,901)		(928)
Amortization of investment in low-income housing tax credits	2,851		1,741		683
State income tax expense, net of federal benefit	(262)		(1,929)		3,241
Nondeductible transaction costs	1,060		—		—
Other items, net	1,294		1,091		1,647
	$	49,508	$	32,509	$	45,240

Significant components of the Company's deferred tax assets and liabilities

Significant components of the Company’s deferred tax assets and liabilities are as follows for the periods presented: 

	December 31,
	2024		2023
Deferred tax assets
Allowance for credit losses	$	53,349	$	53,432
Loans	—		1,631
Deferred compensation	15,695		15,310
Net unrealized losses on securities	47,199		51,211
Impairment of assets	874		138
Tax credits	8,781		4,035
Net operating loss carryforwards	2		33
Investments in partnerships	77		1,491
Lease liabilities under operating leases	12,423		13,066
Realized losses on securities	—		4,892
Other	3,073		2,660
Total deferred tax assets	141,473		147,899
Deferred tax liabilities
Fixed assets	9,927		11,023
Mortgage servicing rights	15,841		21,282
Junior subordinated debt	1,452		1,708
Intangibles	3,652		2,447
Lease right-of-use asset	11,775		12,399
Loans	7,638		—
Other	4,153		3,344
Total deferred tax liabilities	54,438		52,203
Net deferred tax assets	$	87,035	$	95,696

Summary of operating loss carryforwards

The table below presents the breakout of net operating losses as of December 31, 2023. There were no net operating losses as of December 31, 2024.

	December 31,
	2023
Net Operating Losses
Federal	$	138
State	—

Schedule of reconciliation of the beginning and ending amount of unrecognized tax benefits, excluding interest

A reconciliation of the beginning and ending amount of unrecognized tax benefits, excluding interest, related to federal and state income tax matters as of December 31 follows below:

	2024		2023		2022
Balance at January 1	$	399	$	407	$	408
Additions based on positions related to current period	190		78		65
Reductions due to lapse of statute of limitations	(88)		(86)		(66)
Balance at December 31	$	501	$	399	$	407