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Capital Stock	3 Months Ended
Capital Stock	Apr. 28, 2018
Stockholders' Equity Note [Abstract]
Capital Stock	Capital Stock Repurchases of Common Stock. During the three months ended April 29, 2017, the Company repurchased and canceled 400,000 shares of its common stock, at an average price of $94.77 per share, for $37.9 million. The Company did not repurchase any of its common stock during the three months ended April 28, 2018. As of April 28, 2018, $95.2 million remained available for repurchases through August 2018 under the Company’s share repurchase program.