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Stock Repurchase and Dividends - Narrative (Details) - USD ($) |  | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Apr. 29, 2019 | Mar. 31, 2019 | Dec. 30, 2018 | Apr. 01, 2018 | Mar. 31, 2019 | Apr. 01, 2018 | Sep. 30, 2018 | Nov. 05, 2018
Subsequent Event [Line Items] |  |  |  |  |  |  |  |
Stock purchases |  | $ 25,000,000 |  | $ 25,000,000 | $ 50,000,000 | $ 50,000,000 |  |
Subsequent Event |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |
Quarterly cash dividend declared (in dollars per share) | $ 0.15 |  |  |  |  |  |  |
November 5, 2018 Stock Repurchase Program |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |
Maximum repurchase amount under stock repurchase program |  |  |  |  |  |  |  | $ 200,000,000
Stock purchases |  | $ 25,000,000 |  |  |  |  |  |
Stock repurchases (in shares) |  | 449,055 |  |  |  |  |  |
Average price of shares repurchased (in dollars per share) |  | $ 55.67 |  |  |  |  |  |
Previous Stock Repurchase Program |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |
Remaining authorized amount under share repurchase program |  |  |  |  |  |  |  | $ 25,000,000
Stock purchases |  |  | $ 25,000,000 |  |  |  | $ 75,000,000 |
Stock repurchases (in shares) |  |  | 430,559 |  |  |  | 1,491,569 |
Average price of shares repurchased (in dollars per share) |  |  | $ 58.06 |  |  |  | $ 50.28 |

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