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v3.23.3

Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance | $ 1,328,439 | $ 1,116,543 | $ 1,217,317 | $ 990,777
Other Comprehensive Income (Loss) Before Reclassifications, net of tax | (292) | (172) | (274) | (477)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) | 585 | 107 | 533 | 23
Total Other Comprehensive Income (Loss) | 293 | (65) | 259 | (454)
Ending balance | 1,402,929 | 1,184,023 | 1,402,929 | 1,184,023
Pension and Other Postretirement Benefits |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance | 1,281 | (6,621) | 1,334 | (6,537)
Other Comprehensive Income (Loss) Before Reclassifications, net of tax | (275) | 0 | (275) | 0
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) | 585 | 106 | 532 | 22
Total Other Comprehensive Income (Loss) | 310 | 106 | 257 | 22
Ending balance | 1,591 | (6,515) | 1,591 | (6,515)
Net Unrealized Gains (Losses) on Available-for-Sale Securities |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance | (400) | (292) | (419) | 13
Other Comprehensive Income (Loss) Before Reclassifications, net of tax | (17) | (172) | 1 | (477)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) | 0 | 1 | 1 | 1
Total Other Comprehensive Income (Loss) | (17) | (171) | 2 | (476)
Ending balance | (417) | (463) | (417) | (463)
Accumulated Other Comprehensive Income (Loss) |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance | 881 | (6,913) | 915 | (6,524)
Total Other Comprehensive Income (Loss) | 293 | (65) | 259 | (454)
Ending balance | $ 1,174 | $ (6,978) | $ 1,174 | $ (6,978)

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