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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Statement of Comprehensive Income [Abstract] |  |  |
Net income | $ 707,755 | $ 692,843 | $ 521,571
Other comprehensive (loss) income: |  |  |
Foreign currency translation | (46,135) | (1,903) | 5,984
Unrealized gains (losses) on investments before income taxes | 26 | (26) | 0
Income tax (expense) benefit | (6) | 6 | 0
Unrealized gains (losses) on investments, net of tax | 20 | (20) | 0
Retirement liability adjustment before reclassifications | 20,953 | 9,342 | (6,786)
Amounts reclassified to other income (expense), net | 574 | 1,167 | 1,389
Retirement liability adjustment before income taxes | 21,527 | 10,509 | (5,397)
Income tax (expense) benefit | (5,119) | (2,508) | 941
Retirement liability adjustment, net of tax | 16,408 | 8,001 | (4,456)
Other comprehensive (loss) income | (29,707) | 6,078 | 1,528
Comprehensive income | $ 678,048 | $ 698,921 | $ 523,099

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