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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME |  |  |
Net income, as reported | $ 1,409,594 | $ 1,107,835 | $ 993,004
Other comprehensive income (loss): |  |  |
Change in foreign currency translation adjustment, net of tax | 35,531 | 194 | (16,957)
Available-for-sale investments: |  |  |
Change in net unrealized gains (losses) | (110) | 283 | 752
Net change in available-for-sale investments | (110) | 283 | 752
Other comprehensive income (loss) | 35,421 | 477 | (16,205)
Comprehensive income | $ 1,445,015 | $ 1,108,312 | $ 976,799

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