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Income Taxes (Tables)
3 Months Ended
Mar. 31, 2023
Income Tax Disclosure [Abstract]  
Significant components of the company's deferred tax assets and liabilities
The following table is a summary of the Company’s temporary differences between the tax basis of assets and liabilities and their financial reporting amounts that give rise to deferred income tax assets and liabilities and their approximate tax effects as of the dates presented.

March 31,December 31,
20232022
Deferred tax assets
Allowance for credit losses$53,030 $52,551 
Loans2,335 2,518 
Deferred compensation10,752 14,447 
Net unrealized losses on securities64,140 70,999 
Impairment of assets180 316 
Net operating loss carryforwards320 497 
Investment in partnerships1,204 1,164 
Lease liabilities under operating leases14,369 14,641 
Other4,707 3,523 
Total deferred tax assets151,037 160,656 
Deferred tax liabilities
Fixed assets10,999 10,342 
Mortgage servicing rights19,775 19,624 
Junior subordinated debt1,888 1,948 
Intangibles2,612 2,702 
Lease right-of-use asset13,736 14,018 
Other1,145 1,614 
Total deferred tax liabilities50,155 50,248 
Net deferred tax assets$100,882 $110,408