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Income Taxes - Tax Effects of Temporary Differences Related to Deferred Taxes Included in Other Liabilities (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Deferred tax assets: |  |
Loans acquired | $ 7,084 | $ 10,100
Allowance for credit losses | 55,064 | 58,028
Valuation of foreclosed assets | 1,673 | 1,673
Tax NOLs from acquisition | 14,720 | 16,028
Deferred compensation payable | 3,267 | 3,060
Accrued equity and other compensation | 5,081 | 5,905
Acquired securities | 491 | 587
Right-of-use lease liability | 8,742 | 7,835
Allowance for unfunded commitments | 5,583 | 5,583
Other | 7,578 | 7,600
Gross deferred tax assets | 109,283 | 116,399
Deferred tax liabilities: |  |
Goodwill and other intangible amortization | (37,914) | (38,882)
Accumulated depreciation | (33,670) | (34,667)
Right-of-use lease asset | (8,661) | (7,813)
Unrealized gain on available-for-sale securities | (2,058) | (17,521)
Other | (4,335) | (4,021)
Gross deferred tax liabilities | (86,638) | (102,904)
Net deferred tax asset | $ 22,645 | $ 13,495

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