Stock Repurchase Activity	3 Months Ended
Oct. 28, 2017
Stock Repurchase Activity [Abstract]
Stock Repurchase Program	7. Stock Repurchase Activity In November 2015, the Board of Directors (Board) authorized a Stock Repurchase Program (Program) of $300.0 million to repurchase our common stock through February 2, 2019. The Program replaced an existing program and authorizes repurchases of our common stock in open market or negotiated transactions, with the amount and timing of repurchases dependent on market conditions and at the discretion of our management. In addition to the Program, we also acquire shares of our common stock from holders of restricted stock unit awards to satisfy tax withholding requirements due at vesting. Shares acquired from holders of restricted stock unit awards to satisfy tax withholding requirements do not reduce the Program authorization. During the thirteen weeks ended October 28, 2017, we repurchased 1.2 million shares of our common stock at a cost of $15.9 million, including 170 shares acquired from holders of restricted stock unit awards to satisfy tax withholding requirements of $2,100. During the thirty-nine weeks ended October 28, 2017, we repurchased 2.2 million shares of our common stock at a cost of $45.2 million, including 24,369 shares acquired from holders of restricted stock unit awards to satisfy tax withholding requirements of $0.7 million. During the thirteen weeks ended October 29, 2016, we repurchased 54,000 shares of our common stock at a cost of $1.9 million, including 111 shares acquired from holders of restricted stock unit awards to satisfy tax withholding requirements of $4,600. During the thirty-nine weeks ended October 29, 2016, we repurchased 0.9 million shares of our common stock at a cost of $31.6 million, including 25,993 shares acquired from holders of restricted stock unit awards to satisfy tax withholding requirements of $0.9 million. As of October 28, 2017, we had approximately $213.4 million remaining under the Program for stock repurchases. Subsequent to October 28, 2017, we have repurchased 0.5 million shares of our common stock at a cost of $6.2 million through November 28, 2017

7. Stock Repurchase Activity

In November 2015, the Board of Directors (Board) authorized a Stock Repurchase Program (Program) of $300.0 million to repurchase our common stock through February 2, 2019. The Program replaced an existing program and authorizes repurchases of our common stock in open market or negotiated transactions, with the amount and timing of repurchases dependent on market conditions and at the discretion of our management. In addition to the Program, we also acquire shares of our common stock from holders of restricted stock unit awards to satisfy tax withholding requirements due at vesting. Shares acquired from holders of restricted stock unit awards to satisfy tax withholding requirements do not reduce the Program authorization.

During the thirteen weeks ended October 28, 2017, we repurchased 1.2 million shares of our common stock at a cost of $15.9 million, including 170 shares acquired from holders of restricted stock unit awards to satisfy tax withholding requirements of $2,100. During the thirty-nine weeks ended October 28, 2017, we repurchased 2.2 million shares of our common stock at a cost of $45.2 million, including 24,369 shares acquired from holders of restricted stock unit awards to satisfy tax withholding requirements of $0.7 million.

During the thirteen weeks ended October 29, 2016, we repurchased 54,000 shares of our common stock at a cost of $1.9 million, including 111 shares acquired from holders of restricted stock unit awards to satisfy tax withholding requirements of $4,600. During the thirty-nine weeks ended October 29, 2016, we repurchased 0.9 million shares of our common stock at a cost of $31.6 million, including 25,993 shares acquired from holders of restricted stock unit awards to satisfy tax withholding requirements of $0.9 million.

As of October 28, 2017, we had approximately $213.4 million remaining under the Program for stock repurchases. Subsequent to October 28, 2017, we have repurchased 0.5 million shares of our common stock at a cost of $6.2 million through November 28, 2017