XML 34 R23.htm IDEA: XBRL DOCUMENT v3.22.2.2
Investment Securities (Tables)
 9 Months Ended
Sep. 30, 2022
Investments, Debt and Equity Securities [Abstract]  
Schedule of investment securities available-for-sale The following table shows investment securities available-for-sale.
(Dollars in thousands)Amortized CostGross Unrealized GainsGross Unrealized LossesFair Value
September 30, 2022    
U.S. Treasury and Federal agencies securities$1,131,244 $— $(99,667)$1,031,577 
U.S. States and political subdivisions securities126,008 — (10,777)115,231 
Mortgage-backed securities — Federal agencies739,896 4 (102,210)637,690 
Corporate debt securities16,496 — (383)16,113 
Foreign government and other securities600 — (17)583 
Total debt securities available-for-sale$2,014,244 $4 $(213,054)$1,801,194 
December 31, 2021    
U.S. Treasury and Federal agencies securities$1,093,780 $3,244 $(13,018)$1,084,006 
U.S. States and political subdivisions securities95,700 1,130 (1,129)95,701 
Mortgage-backed securities — Federal agencies663,441 4,745 (8,459)659,727 
Corporate debt securities22,510 499 — 23,009 
Foreign government and other securities600 — (2)598 
Total debt securities available-for-sale$1,876,031 $9,618 $(22,608)$1,863,041 
Schedule of contractual maturities of investments in debt securities available-for-sale
The following table shows the contractual maturities of investments in debt securities available-for-sale at September 30, 2022. Expected maturities will differ from contractual maturities, because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.
(Dollars in thousands)Amortized CostFair Value
Due in one year or less$85,315 $84,424 
Due after one year through five years1,118,538 1,017,205 
Due after five years through ten years39,021 32,807 
Due after ten years31,474 29,068 
Mortgage-backed securities739,896 637,690 
Total debt securities available-for-sale$2,014,244 $1,801,194 
Schedule of gross unrealized losses and fair value by investment category and age
The following table summarizes gross unrealized losses and fair value by investment category and age. At September 30, 2022, the Company’s available-for-sale securities portfolio consisted of 748 securities, 728 of which were in an unrealized loss position.
 Less than 12 Months12 months or LongerTotal
(Dollars in thousands) Fair ValueUnrealized LossesFair ValueUnrealized LossesFair ValueUnrealized Losses
September 30, 2022      
U.S. Treasury and Federal agencies securities$344,947 $(19,238)$686,630 $(80,429)$1,031,577 $(99,667)
U.S. States and political subdivisions securities80,326 (5,194)33,630 (5,583)113,956 (10,777)
Mortgage-backed securities - Federal agencies332,094 (39,091)304,448 (63,119)636,542 (102,210)
Corporate debt securities16,113 (383)— — 16,113 (383)
Foreign government and other securities487 (13)96 (4)583 (17)
Total debt securities available-for-sale$773,967 $(63,919)$1,024,804 $(149,135)$1,798,771 $(213,054)
December 31, 2021      
U.S. Treasury and Federal agencies securities$789,536 $(10,728)$84,191 $(2,290)$873,727 $(13,018)
U.S. States and political subdivisions securities39,585 (980)4,875 (149)44,460 (1,129)
Mortgage-backed securities - Federal agencies454,413 (7,312)35,232 (1,147)489,645 (8,459)
Corporate debt securities— — — — — — 
Foreign government and other securities598 (2)— — 598 (2)
Total debt securities available-for-sale$1,284,132 $(19,022)$124,298 $(3,586)$1,408,430 $(22,608)
Schedule of gross realized gains and losses from securities available-for-sale portfolio
The following table shows the gross realized gains and losses from the available-for-sale debt securities portfolio. Realized gains and losses of all securities are computed using the specific identification cost basis.
Three Months Ended
September 30,		Nine Months Ended
September 30,
(Dollars in thousands)2022202120222021
Gross realized gains$— $— $— $221 
Gross realized losses— — — (901)
Net realized gains (losses)$— $— $— $(680)