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Equity Plans - Share Based Compensation (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
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3 Months Ended |
6 Months Ended |
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Feb. 27, 2014
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Feb. 28, 2013
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Feb. 27, 2014
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Feb. 28, 2013
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Feb. 27, 2014
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Number of shares of common stock reserved for issuance for stock options and restricted stock awards (in shares) |
123 |
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123 |
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| Number of shares subject to outstanding awards (in shares) |
66 |
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66 |
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| Number of shares available for future awards (in shares) |
57 |
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57 |
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| Number of stock options granted during the period (in shares) |
9 |
13 |
11 |
17 |
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| Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract] |
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| Weighted-average grant-date fair values per share of options granted during period (in dollars per share) |
$ 9.58 |
$ 3.35 |
$ 9.17 |
$ 3.27 |
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| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] |
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| Fair Value Assumptions, Method Used |
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Black-Scholes |
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| Average expected life (in years) |
4 years 9 months |
5 years 1 month |
4 years 9 months |
5 years 1 month |
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| Weighted-average expected volatility (in hundredths) |
46.00% |
59.00% |
47.00% |
60.00% |
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| Weighted-average risk-free interest rate (in thousandths) |
1.60% |
0.70% |
1.60% |
0.70% |
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| Restricted Stock Awards activity |
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| Number of Shares - Outstanding (in shares) |
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12 |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward] |
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| Weighted Average Grant Date Fair Value Per Share - Granted (in dollars per share) |
$ 23.24 |
$ 6.69 |
$ 21.22 |
$ 6.20 |
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Service-based awards [Member]
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| Restricted Stock Awards activity |
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| Number of Shares - Granted (in shares) |
4 |
3 |
5 |
5 |
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Performance-based shares [Member]
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| Restricted Stock Awards activity |
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| Number of Shares - Outstanding (in shares) |
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1 |
| Number of Shares - Granted (in shares) |
0 |
0 |
1 |
1 |
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