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Income Taxes - Significant Components of The Company's Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Deferred tax assets |  |
Allowance for credit losses | $ 53,078 | $ 52,551
Loans | 1,932 | 2,518
Deferred compensation | 14,381 | 14,447
Net unrealized losses on securities | 66,442 | 70,999
Impairment of assets | 135 | 316
Net operating loss carryforwards | 0 | 497
Investment in partnerships | 1,481 | 1,164
Lease liabilities under operating leases | 13,505 | 14,641
Other | 5,703 | 3,523
Total deferred tax assets | 156,657 | 160,656
Deferred tax liabilities |  |
Fixed assets | 10,340 | 10,342
Mortgage servicing rights | 21,103 | 19,624
Junior subordinated debt | 1,767 | 1,948
Intangibles | 2,483 | 2,702
Lease right-of-use asset | 12,889 | 14,018
Other | 993 | 1,614
Total deferred tax liabilities | 49,575 | 50,248
Net deferred tax assets | $ 107,082 | $ 110,408

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