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Accumulated Other Comprehensive Income (Loss)
 12 Months Ended
Dec. 31, 2024
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss)
 
Changes in accumulated other comprehensive income ("AOCI") (loss) by component, including amounts reclassified to other comprehensive income ("OCI") (loss) and the related line item in the Consolidated Statements of Operations where net income is presented, are as follows for the year ended December 31:
(in thousands)202420232022
Before TaxIncome TaxNetBefore TaxIncome TaxNetBefore TaxIncome TaxNet
Investment securities:
AOCI (loss), beginning of year$(31,402)$(6,595)$(24,807)$(66,571)$(13,980)$(52,591)$7,722 $1,621 $6,101 
OCI (loss) before reclassifications6,557 1,377 5,180 26,021 5,464 20,557 (89,010)(18,692)(70,318)
Realized investment losses 1,620 340 1,280 6,719 1,411 5,308 14,050 2,951 11,099 
Impairment losses783 164 619 2,429 510 1,919 667 140 527 
OCI (loss)8,960 1,881 7,079 35,169 7,385 27,784 (74,293)(15,601)(58,692)
AOCI (loss), end of year$(22,442)$(4,714)$(17,728)$(31,402)$(6,595)$(24,807)$(66,571)$(13,980)$(52,591)
Pension and other postretirement plans:
AOCI (loss), beginning of year$14,439 $3,032 $11,407 $57,186 $12,009 $45,177 $(39,734)$(8,345)$(31,389)
OCI (loss) before reclassifications(45,655)(9,588)(36,067)(28,862)(6,061)(22,801)88,148 18,511 69,637 
Amortization of prior service costs (1)
1,611 338 1,273 1,446 304 1,142 1,443 303 1,140 
Amortization of net actuarial (gain) loss (1)
(6,859)(1,440)(5,419)(15,331)(3,220)(12,111)7,329 1,540 5,789 
Settlement gain (1)
(1,338)(281)(1,057)— — — — — — 
OCI (loss)(52,241)(10,971)(41,270)(42,747)(8,977)(33,770)96,920 20,354 76,566 
AOCI (loss), end of year$(37,802)$(7,939)$(29,863)$14,439 $3,032 $11,407 $57,186 $12,009 $45,177 
Total
AOCI (loss), beginning of year$(16,963)$(3,563)$(13,400)$(9,385)$(1,971)$(7,414)$(32,012)$(6,724)$(25,288)
Investment securities8,960 1,881 7,079 35,169 7,385 27,784 (74,293)(15,601)(58,692)
Pension and other postretirement plans(52,241)(10,971)(41,270)(42,747)(8,977)(33,770)96,920 20,354 76,566 
OCI (loss)(43,281)(9,090)(34,191)(7,578)(1,592)(5,986)22,627 4,753 17,874 
AOCI (loss), end of year$(60,244)$(12,653)$(47,591)$(16,963)$(3,563)$(13,400)$(9,385)$(1,971)$(7,414)

(1)These components of AOCI (loss) are included in the computation of net periodic pension (income) cost. See Note 10, "Postretirement Benefits", for additional information.