XML 90 R81.htm IDEA: XBRL DOCUMENT v3.23.1
Fair Value of Financial Instruments - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Franklin Financial Network, Inc. |  Fair Value | Commercial and industrial      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Gain recognized on the change in fair value of portfolio $ 910 $ (174)  
Mortgage Loans      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Net (losses) gains from fair value changes of mortgage loans held for sale recorded in income (51) (16,874)  
Loans HFS and derivatives      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Net (losses) gains from fair value changes of mortgage loans held for sale recorded in income (421) $ (7,548)  
Level 3 | Non-recurring Basis      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Amortized costs of collateral dependent loans $ 558   $ 3,054