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Loans - Narrative, Loans Held-for-Investment (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2022 | Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans held-for-sale | $ 2,346 | $ 0
PCI loans | $ 4,111,857 | $ 3,806,617
Home equity loan |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Percentage of PCI loans | 13.00% |
Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Percentage of PCI loans | 25.00% | 25.00%
Commercial and industrial loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Percentage of PCI loans | 51.00% | 48.00%
One-to-four family residential mortgage |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Percentage of PCI loans | 11.00% | 16.00%
Construction and land and home equity loan |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Percentage of PCI loans |  | 11.00%
PCD loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
PCI loans | $ 13,136 | $ 15,819

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