Shareholders' Equity - Share Repurchase Programs (Details) - USD ($) $ in Thousands, shares in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Apr. 29, 2017 |
Apr. 30, 2016 |
Jan. 28, 2017 |
Mar. 15, 2017 |
|
| Class of Stock [Line Items] | ||||
| Stock Repurchased During Period, Value | $ 48,508 | $ 141,441 | $ 112,863 | |
| Common Stock [Member] | 2017 Repurchase Program [Member] | ||||
| Class of Stock [Line Items] | ||||
| Stock Repurchase Program, Authorized Amount | $ 150,000 | |||
| Stock Repurchased During Period, Shares | 0.7 | |||
| Stock Repurchased During Period, Value | $ 33,600 | |||