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v3.23.1

Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Beginning balance | $ 1,217,317 | $ 990,777
Other Comprehensive Income (Loss) Before Reclassifications, net of tax | 80 | (231)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) | (26) | (190)
Total Other Comprehensive Income (Loss) | 54 | (421)
Ending balance | 1,263,777 | 1,047,138
Pension and Other Postretirement Benefits |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Beginning balance | 1,334 | (6,537)
Other Comprehensive Income (Loss) Before Reclassifications, net of tax | 0 | 0
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) | (26) | (190)
Total Other Comprehensive Income (Loss) | (26) | (190)
Ending balance | 1,308 | (6,727)
Net Unrealized Gains (Losses) on Available-for-Sale Securities |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Beginning balance | (419) | 13
Other Comprehensive Income (Loss) Before Reclassifications, net of tax | 80 | (231)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) | 0 | 0
Total Other Comprehensive Income (Loss) | 80 | (231)
Ending balance | (339) | (218)
Accumulated Other Comprehensive Income (Loss) |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Beginning balance | 915 | (6,524)
Total Other Comprehensive Income (Loss) | 54 | (421)
Ending balance | $ 969 | $ (6,945)

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