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Subsequent Events	12 Months Ended
Subsequent Events	Sep. 01, 2018
Subsequent Event [Abstract]
Subsequent Events	14. SUBSEQUENT EVENT In September 2018 and October 2018, pursuant to the Company’s share repurchase authorization, the Company purchased 7 shares of its Class A common stock at a volume weighted average purchase price of $85.00 per share and 493 shares if its Class A common stock at a volume weighted average purchase price of $81.22 per share, respectively. In connection with the stock purchase agreement noted in Note 9, the Company purchased from certain of its Class B shareholders 113 shares of its Class A common stock at a purchase price of $84.29 per share in September 2018 and 2 shares of its Class A common stock at a purchase price of $85.00 per share in October 2018.