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Borrowings
 12 Months Ended
Dec. 31, 2021
Debt Disclosure [Abstract]  
Borrowings Borrowings
The Company’s repurchase agreements totaled $1,020,794,000 and $1,004,583,000 at December 31, 2021 and 2020, respectively, and are secured by debt securities with carrying values of $1,233,885,000 and $1,151,264,000, respectively. Securities are pledged to customers at the time of the transaction in an amount at least equal to the outstanding balance and are held in custody accounts by third parties. The fair value of collateral is continually monitored and additional collateral is provided as deemed appropriate. The following tables summarize the carrying value of the Company’s repurchase agreements by remaining contractual maturity and category of collateral:
December 31, 2021December 31, 2020
Remaining Contractual Maturity of the Agreements
(Dollars in thousands)Overnight and Continuous
State and local governments$— 787,016 
Corporate bonds— 217,567 
Residential mortgage-backed securities1,020,794 — 
Total$1,020,794 1,004,583 
FHLB advances are collateralized by specifically pledged loans and debt securities, FHLB stock owned by the Company, and a blanket assignment of the unpledged qualifying loans and investments. In 2019, the Company implemented a balance sheet strategy to increase its net interest income and net interest margin. The strategy included early termination of the Company's pay-fixed interest rate swaps and corresponding debt, including FHLB advances. A $3,531,000 loss was recognized on the early payment of the FHLB advances and was reported in loss on termination of hedging activities on the Company’s statements of operations. During 2020, the Company paid down all FHLB advances and they were zero at December 31, 2021, and 2020.

The Company’s other borrowings consisted of finance lease liabilities and other debt obligations through consolidation of certain VIEs. At December 31, 2021, the Company had $635,000,000 in unsecured lines of credit which are typically renewed on an annual basis with various correspondent entities.