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Shareholders' Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Dec. 29, 2018 | Dec. 30, 2017 | Feb. 14, 2018 | Jun. 06, 2016
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Amount repurchased | $ 50,051 | $ 9,547 |  |
2018 Stock Repurchase Program [Member] |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Authorized repurchase amount |  |  | $ 200,000 |
Amount repurchased (in shares) | 869,949 |  |  |
Amount repurchased | $ 50,100 |  |  |
Average repurchase price (in dollars per share) | $ 57.53 |  |  |
Remaining authorized repurchase amount | $ 128,800 |  |  |
2016 Stock Repurchase Program [Member] |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Authorized repurchase amount |  |  |  | $ 150,000
Amount repurchased (in shares) |  | 158,466 |  |
Amount repurchased |  | $ 9,500 |  |
Average repurchase price (in dollars per share) |  | $ 60.25 |  |

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