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TREASURY STOCK ACTIVITY - NARRATIVE (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Feb. 13, 2023 | Sep. 29, 2024 | Dec. 04, 2023 | May 31, 2021 | Jul. 24, 2018
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Shares repurchased (shares) |  | 2,505,097 |  |  |
Stock repurchased during period, value |  | $ 494,191 |  |  |
Stock repurchase program, remaining authorized repurchase amount |  | $ 470,000 |  |  |
2018 Share Repurchase Program |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  | $ 500,000
2021 Share Repurchase Program |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  | $ 500,000 |
2023 Share Repurchase Program |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Stock repurchase program, authorized amount |  |  | $ 500,000 |  |
Hershey Trust Company |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Shares repurchased (shares) | 1,000,000 |  |  |  |
Treasury stock acquired, average cost per share (USD per share) | $ 239.91 |  |  |  |
Stock repurchased during period, value | $ 239,910 |  |  |  |

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