v3.26.1
Fair Value Measurements (Summary Of Changes In Level 3 Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Fair Value Assets Measured on Recurring Basis [Roll Forward]        
Beginning balance $ 184,714 $ 176,565 $ 185,295 $ 185,350
Total gains (losses) (realized/unrealized), included in earnings (3,951) 4,414 6,939 (4,111)
Total gains (losses) (realized/unrealized), included in other comprehensive income [1] 15 2 12 (16)
Discount accretion 0 1 1 2
Purchase of private equity securities 1,214 728 6,815 6,426
Sales And Repayments Of Private Equity Securities (11) (6,707) (17,099) (12,665)
Capitalized interest/dividends 17 17 35 34
Ending balance 181,998 175,020 181,998 175,020
Total gains (losses) for the annual period included in earnings attributable to the change in unrealized gains or losses relating to assets still held at period end (3,951) 4,414 6,939 (3,312)
Gains (Losses) included in OCI Attributable to Change in Unrealized Gains (Losses) Relating to Assets Still Held, Total $ 15 2 $ 12 (16)
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] INVESTMENT SECURITIES GAINS (LOSSES), NET   INVESTMENT SECURITIES GAINS (LOSSES), NET  
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Asset, Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration] Net unrealized gains (losses) on available for sale debt securities   Net unrealized gains (losses) on available for sale debt securities  
State and municipal obligations [Member]        
Fair Value Assets Measured on Recurring Basis [Roll Forward]        
Beginning balance $ 950 947 $ 952 964
Total gains (losses) (realized/unrealized), included in earnings 0 0 0 0
Total gains (losses) (realized/unrealized), included in other comprehensive income [1] 15 2 12 (16)
Discount accretion 0 1 1 2
Purchase of private equity securities 0 0 0 0
Sales And Repayments Of Private Equity Securities 0 0 0 0
Capitalized interest/dividends 0 0 0 0
Ending balance 965 950 965 950
Total gains (losses) for the annual period included in earnings attributable to the change in unrealized gains or losses relating to assets still held at period end 0 0 0 0
Gains (Losses) included in OCI Attributable to Change in Unrealized Gains (Losses) Relating to Assets Still Held, Total 15 2 12 (16)
Private Equity Investments [Member]        
Fair Value Assets Measured on Recurring Basis [Roll Forward]        
Beginning balance 183,764 175,618 184,343 184,386
Total gains (losses) (realized/unrealized), included in earnings (3,951) 4,414 6,939 (4,111)
Total gains (losses) (realized/unrealized), included in other comprehensive income [1] 0 0 0 0
Discount accretion 0 0 0 0
Purchase of private equity securities 1,214 728 6,815 6,426
Sales And Repayments Of Private Equity Securities (11) (6,707) (17,099) (12,665)
Capitalized interest/dividends 17 17 35 34
Ending balance 181,033 174,070 181,033 174,070
Total gains (losses) for the annual period included in earnings attributable to the change in unrealized gains or losses relating to assets still held at period end (3,951) 4,414 6,939 (3,312)
Gains (Losses) included in OCI Attributable to Change in Unrealized Gains (Losses) Relating to Assets Still Held, Total $ 0 $ 0 $ 0 $ 0
[1]
* Included in "net unrealized gains (losses) on available for sale debt securities" in the consolidated statements of comprehensive income.