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Consolidated Statement Of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands | Restricted Share Awards [Member] Class A Common Stock [Member] Common Stock [Member] | Restricted Stock Units [Member] Class A Common Stock [Member] Common Stock [Member] | Restricted Stock Units [Member] Additional Paid-In Capital [Member] | Restricted Stock Units [Member] | Class A Common Stock [Member] Common Stock [Member] | Class A Common Stock [Member] Retained Earnings [Member] | Class A Common Stock [Member] | Class B Common Stock [Member] Common Stock [Member] | Class B Common Stock [Member] Retained Earnings [Member] | Class B Common Stock [Member] | Additional Paid-In Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Loss [Member] | Class A Treasury Stock [Member] | Total
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance, Value at Aug. 30, 2014 |  |  |  |  | $ 56 |  |  | $ 13 |  |  | $ 573,730 | $ 1,286,068 | $ (5,054) | $ (456,250) | $ 1,398,563
Balance, Shares at Aug. 30, 2014 |  |  |  |  | 55,980 |  |  | 13,296 |  |  |  |  |  | 7,657 |
Exercise of common stock options, Shares |  |  |  |  | 185 |  |  |  |  |  |  |  |  |  |
Exercise of common stock options, Value |  |  |  |  |  |  |  |  |  |  | 14,418 |  |  |  | 14,418
Common stock issued under associate stock purchase plan, Shares |  |  |  |  |  |  |  |  |  |  |  |  |  | (63) |
Common stock issued under associate stock purchase plan, Value |  |  |  |  |  |  |  |  |  |  | 1,854 |  |  | $ 2,431 | 4,285
Shares issued from restricted stock units, including dividend equivalent units, Value |  |  | $ 708 | $ 708 |  |  |  |  |  |  |  |  |  |  |
Shares issued from restricted stock units, including dividend equivalent units, Shares | 97 | 138 |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |  |  |  |  |  | 14,195 |  |  |  | 14,195
Repurchases of common stock, Shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 444 |
Repurchases of common stock, Value |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (33,414) | (33,414)
Cash dividends on common stock |  |  |  |  |  | $ (223,071) | $ (223,071) |  | $ (61,160) | $ (61,160) |  |  |  |  |
Dividend equivalent units declared, net of cancellations |  |  |  |  |  |  |  |  |  |  |  | (764) |  |  | (764)
Foreign currency translation adjustment |  |  |  |  |  |  |  |  |  |  |  |  | (12,198) |  | (12,198)
Net income |  |  |  |  |  |  |  |  |  |  |  | 231,308 |  |  | 231,308
Balance, Value at Aug. 29, 2015 |  |  |  |  | $ 56 |  |  | $ 13 |  |  | 604,905 | 1,232,381 | (17,252) | $ (487,233) | 1,332,870
Balance, Shares at Aug. 29, 2015 |  |  |  |  | 56,400 |  |  | 13,296 |  |  |  |  |  | 8,038 |
Exchange of Class B common stock for Class A common stock, Shares |  |  |  |  | 1,363 |  |  | (1,363) |  |  |  |  |  |  |
Exchange of Class B common stock for Class A common stock, Value |  |  |  |  | $ 1 |  |  | $ (1) |  |  |  |  |  |  |
Exercise of common stock options, Shares |  |  |  |  | 144 |  |  |  |  |  |  |  |  |  |
Exercise of common stock options, Value |  |  |  |  | $ 1 |  |  |  |  |  | 8,239 |  |  |  | 8,240
Common stock issued under associate stock purchase plan, Shares |  |  |  |  |  |  |  |  |  |  |  |  |  | (64) |
Common stock issued under associate stock purchase plan, Value |  |  |  |  |  |  |  |  |  |  | 1,649 |  |  | $ 2,435 | 4,084
Shares issued from restricted stock units, including dividend equivalent units, Value |  |  | 147 | 147 |  |  |  |  |  |  |  |  |  |  |
Shares issued from restricted stock units, including dividend equivalent units, Shares | (15) | 74 |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |  |  |  |  |  | 13,985 |  |  |  | 13,985
Repurchases of common stock, Shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,344 |
Repurchases of common stock, Value |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (384,111) | (384,111)
Retirement of treasury stock, Shares |  |  |  |  | (4,973) |  |  |  |  |  |  |  |  | (4,973) |
Retirement of treasury stock, Value |  |  |  |  | $ (5) |  |  |  |  |  | (44,908) | (317,240) |  | $ 362,153 |
Cash dividends on common stock |  |  |  |  |  | (83,000) | $ (83,000) |  | (22,778) | (22,778) |  |  |  |  |
Dividend equivalent units declared, net of cancellations |  |  |  |  |  |  |  |  |  |  |  | (431) |  |  | (431)
Foreign currency translation adjustment |  |  |  |  |  |  |  |  |  |  |  |  | (1,846) |  | (1,846)
Net income |  |  |  |  |  |  |  |  |  |  |  | 231,216 |  |  | 231,216
Balance, Value at Sep. 03, 2016 |  |  |  |  | $ 53 |  |  | $ 12 |  |  | 584,017 | 1,040,148 | (19,098) | $ (506,756) | 1,098,376
Balance, Shares at Sep. 03, 2016 |  |  |  |  | 52,993 |  |  | 11,933 |  |  |  |  |  | 8,345 |
Exchange of Class B common stock for Class A common stock, Shares |  |  |  |  | 82 |  |  | (82) |  |  |  |  |  |  |
Exercise of common stock options, Shares |  |  |  |  | 399 |  |  |  |  |  |  |  |  |  |
Exercise of common stock options, Value |  |  |  |  | $ 1 |  |  |  |  |  | 26,887 |  |  |  | 26,888
Common stock issued under associate stock purchase plan, Shares |  |  |  |  |  |  |  |  |  |  |  |  |  | (57) |
Common stock issued under associate stock purchase plan, Value |  |  |  |  |  |  |  |  |  |  | 2,088 |  |  | $ 2,155 | 4,243
Shares issued from restricted stock units, including dividend equivalent units, Value |  |  | $ 78 | $ 78 |  |  |  |  |  |  |  |  |  |  |
Shares issued from restricted stock units, including dividend equivalent units, Shares | (7) | 47 |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |  |  |  |  |  | 13,925 |  |  |  | 13,925
Repurchases of common stock, Shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 685 |
Repurchases of common stock, Value |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (48,869) | (48,869)
Retirement of treasury stock, Shares |  |  |  |  |  |  | (4,973) |  |  |  |  |  |  |  |
Cash dividends on common stock |  |  |  |  |  | $ (80,848) | $ (80,848) |  | $ (21,368) | $ (21,368) |  |  |  |  |
Dividend equivalent units declared, net of cancellations |  |  |  |  |  |  |  |  |  |  |  | (551) |  |  | (551)
Foreign currency translation adjustment |  |  |  |  |  |  |  |  |  |  |  |  | 1,835 |  | 1,835
Net income |  |  |  |  |  |  |  |  |  |  |  | 231,431 |  |  | 231,431
Balance, Value at Sep. 02, 2017 |  |  |  |  | $ 54 |  |  | $ 12 |  |  | $ 626,995 | $ 1,168,812 | $ (17,263) | $ (553,470) | $ 1,225,140
Balance, Shares at Sep. 02, 2017 |  |  |  |  | 53,514 |  |  | 11,851 |  |  |  |  |  | 8,973 |

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