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Profit Sharing 401(k) Plan | 12 Months Ended
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Sep. 30, 2017
Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract] |
Profit Sharing 401(k) Plan | Profit Sharing 401(k) Plan The Company has a qualified profit sharing plan covering substantially all of its employees. The Company made contributions of $20.2 million, $16.2 million and $14.4 million for fiscal 2017, 2016 and 2015, respectively.

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