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Consolidated Statements Of Operations And Comprehensive Income (Loss) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
REVENUES: |  |  |
Premiums earned | $ 8,681,513 | $ 7,403,686 | $ 6,931,699
Net Investment Income | 642,465 | 647,139 | 581,183
Net realized capital gains (losses): |  |  |
Credit allowances on fixed maturity securities | (1,745) |  |
Other-than-temporary impairments on fixed maturity securities |  | (20,899) | (8,110)
Other net realized capital gains (losses) | 269,394 | 205,903 | (119,026)
Total net realized capital gains (losses) | 267,649 | 185,004 | (127,136)
Other income (expense) | 6,487 | (4,660) | (24,251)
Total revenues | 9,598,114 | 8,231,169 | 7,361,495
CLAIMS AND EXPENSES: |  |  |
Incurred losses and loss adjustment expenses | 6,550,837 | 4,922,898 | 5,651,403
Commission, brokerage, taxes and fees | 1,873,250 | 1,703,726 | 1,519,030
Other underwriting expenses | 511,237 | 440,899 | 371,541
Corporate expenses | 41,118 | 32,966 | 30,672
Interest, fees and bond issue cost amortization expense | 36,323 | 31,693 | 31,031
Total claims and expenses | 9,012,765 | 7,132,182 | 7,603,677
INCOME (LOSS) BEFORE TAXES | 585,349 | 1,098,987 | (242,182)
Income tax expense (benefit) | 71,198 | 89,526 | (331,223)
NET INCOME (LOSS) | 514,151 | 1,009,461 | 89,041
Other comprehensive income (loss), net of tax: |  |  |
Unrealized appreciation (depreciation) ("URA(D)") on securities arising during the period | 423,210 | 496,430 | (255,656)
Reclassification adjustment for realized losses (gains) included in net income (loss) | (3,476) | (12,613) | 27,496
Total URA(D) on securities arising during the period | 419,734 | 483,817 | (228,160)
Foreign currency translation adjustments | 86,327 | 14,030 | (76,816)
Benefit plan actuarial net gain (loss) for the period | (5,615) | (12,591) | (510)
Reclassification adjustment for amortization of net (gain) loss included in net income (loss) | 6,300 | 5,453 | 5,021
Total benefit plan net gain (loss) for the period | 685 | (7,138) | 4,511
Total other comprehensive income (loss), net of tax | 506,746 | 490,709 | (300,465)
COMPREHENSIVE INCOME (LOSS) | $ 1,020,897 | $ 1,500,170 | $ (211,424)
EARNINGS PER COMMON SHARE: |  |  |
Basic | $ 12.81 | $ 24.77 | $ 2.18
Diluted | $ 12.78 | $ 24.70 | $ 2.17

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