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Other Current Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |  |
Deferred compensation plans | $ 398,442 | $ 311,708
Prepaid expenses | 84,364 | 52,887
Other | 42,768 | 37,990
Other current assets | $ 525,574 | $ 402,585

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