Loans
Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are segregated by type, such as commercial, real estate and consumer loans, as outlined by regulatory reporting guidelines. Each category is segmented into fixed and variable interest rate terms and by performing and non-performing categories.
For variable rate performing loans, the carrying amount approximates the fair value. For fixed-rate performing loans, except residential mortgage loans, the fair value is calculated by discounting scheduled cash flows through the estimated maturity using estimated market discount rates that reflect the credit and interest rate risk inherent in the loan. For performing residential mortgage loans, fair value is estimated by discounting contractual cash flows adjusted for prepayment estimates using discount rates based on secondary market sources or the primary origination market. Fixed-rate performing loans are within Level 3 of the fair value hierarchy. At September 30, 2019 and December 31, 2018, the carrying amount of fixed-rate performing loans was $1,522,399,000 and $1,515,437,000, respectively, and the estimated fair value was $1,503,049,000 and $1,469,231,000, respectively.
Accrued Interest
The carrying amounts of accrued interest approximate fair value.
Deposits
The fair value of deposits with no stated maturity, such as non-interest bearing demand deposit accounts, savings accounts and interest bearing demand deposit accounts, was equal to the amount payable on demand as of September 30, 2019 and December 31, 2018. The fair value of time deposits is based on the discounted value of contractual cashflows. The discount rate is based on currently offered rates. Time deposits are within Level 3 of the fair value hierarchy. At September 30, 2019 and December 31, 2018, the carrying amount of time deposits was $1,981,369,000 and $1,973,468,000, respectively, and the estimated fair value was $1,981,073,000 and $1,976,156,000, respectively.
Securities Sold Under Repurchase Agreements
Securities sold under repurchase agreements include short- and long-term maturities. Due to the contractual terms of the short-term instruments, the carrying amounts approximated fair value at September 30, 2019 and December 31, 2018.
Junior Subordinated Deferrable Interest Debentures
We currently have floating-rate junior subordinated deferrable interest debentures outstanding. Due to the contractual terms of the floating-rate junior subordinated deferrable interest debentures, the carrying amounts approximated fair value at September 30, 2019 and December 31, 2018.
Other Borrowed Funds
We currently have short- and long-term borrowings issued from the Federal Home Loan Bank (“FHLB”). Due to the contractual terms of the short-term borrowings, the carrying amounts approximated fair value at September 30, 2019 and December 31, 2018. The long-term borrowings outstanding at September 30, 2019 and December 31, 2018 are fixed-rate borrowings and the fair value is based on established market spreads for similar types of borrowings. The fixed rate long-term borrowings are included in Level 2 of the fair value hierarchy. At September 30, 2019 and December 31, 2018, the carrying amount of the fixed rate long-term FHLB borrowings was $436,556,000 and $436,690,000, respectively, and the estimated fair value was $463,409,000 and $436,238,000, respectively.