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Share-Based Compensation Expense (Details 1) (USD $)
In Thousands, except Per Share data, unless otherwise specified
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12 Months Ended |
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Oct. 31, 2012
Y
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Oct. 31, 2011
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Oct. 31, 2010
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Oct. 31, 2009
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| Summarizes information with respect to stock options outstanding |
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| Range of Exercise Price, Lower (in dollars per share) |
$ 0.94 |
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| Number of Shares, Options Outstanding (in shares) |
3,207 |
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| Weighted Average, Outstanding Options Remaining Contractual Life (Years) |
2.66 |
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| Weighted Average Exercise Price, Options Outstanding (per share) |
$ 27.58 |
$ 30.01 |
$ 40.96 |
$ 45.80 |
| Aggregate Intrinsic Value, Options Outstanding |
$ 1,445 |
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| Number of Shares, Vested Options (in shares) |
3,175 |
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| Weighted Average, Vested Options Remaining Contractual Life (Years) |
2.62 |
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| Weighted Average Exercise Price, Vested Options (per share) |
$ 27.75 |
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| Aggregate Intrinsic Value, Vested Options |
1,387 |
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Range of Exercise Price Range One [Member]
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| Summarizes information with respect to stock options outstanding |
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| Range of Exercise Price, Lower (in dollars per share) |
$ 0.94 |
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| Range of Exercise Price, Upper (in dollars per share) |
$ 16.31 |
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| Number of Shares, Options Outstanding (in shares) |
318 |
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| Weighted Average, Outstanding Options Remaining Contractual Life (Years) |
5.03 |
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| Weighted Average Exercise Price, Options Outstanding (per share) |
$ 8.44 |
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| Aggregate Intrinsic Value, Options Outstanding |
1,445 |
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| Number of Shares, Vested Options (in shares) |
286 |
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| Weighted Average, Vested Options Remaining Contractual Life (Years) |
4.84 |
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| Weighted Average Exercise Price, Vested Options (per share) |
$ 8.16 |
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| Aggregate Intrinsic Value, Vested Options |
1,387 |
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Range of Exercise Price Range Two [Member]
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| Summarizes information with respect to stock options outstanding |
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| Range of Exercise Price, Lower (in dollars per share) |
$ 16.52 |
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| Range of Exercise Price, Upper (in dollars per share) |
$ 17.29 |
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| Number of Shares, Options Outstanding (in shares) |
389 |
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| Weighted Average, Outstanding Options Remaining Contractual Life (Years) |
2.68 |
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| Weighted Average Exercise Price, Options Outstanding (per share) |
$ 16.68 |
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| Aggregate Intrinsic Value, Options Outstanding |
0 |
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| Number of Shares, Vested Options (in shares) |
389 |
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| Weighted Average, Vested Options Remaining Contractual Life (Years) |
2.68 |
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| Weighted Average Exercise Price, Vested Options (per share) |
$ 16.68 |
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| Aggregate Intrinsic Value, Vested Options |
0 |
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Range of Exercise Price Range Three [Member]
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| Summarizes information with respect to stock options outstanding |
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| Range of Exercise Price, Lower (in dollars per share) |
$ 17.43 |
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| Range of Exercise Price, Upper (in dollars per share) |
$ 24.5 |
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| Number of Shares, Options Outstanding (in shares) |
529 |
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| Weighted Average, Outstanding Options Remaining Contractual Life (Years) |
2.48 |
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| Weighted Average Exercise Price, Options Outstanding (per share) |
$ 20.46 |
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| Aggregate Intrinsic Value, Options Outstanding |
0 |
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| Number of Shares, Vested Options (in shares) |
529 |
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| Weighted Average, Vested Options Remaining Contractual Life (Years) |
2.48 |
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| Weighted Average Exercise Price, Vested Options (per share) |
$ 20.46 |
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| Aggregate Intrinsic Value, Vested Options |
0 |
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Range of Exercise Price Range Four [Member]
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| Summarizes information with respect to stock options outstanding |
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| Range of Exercise Price, Lower (in dollars per share) |
$ 24.69 |
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| Range of Exercise Price, Upper (in dollars per share) |
$ 28.28 |
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| Number of Shares, Options Outstanding (in shares) |
406 |
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| Weighted Average, Outstanding Options Remaining Contractual Life (Years) |
3.67 |
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| Weighted Average Exercise Price, Options Outstanding (per share) |
$ 27.00 |
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| Aggregate Intrinsic Value, Options Outstanding |
0 |
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| Number of Shares, Vested Options (in shares) |
406 |
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| Weighted Average, Vested Options Remaining Contractual Life (Years) |
3.67 |
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| Weighted Average Exercise Price, Vested Options (per share) |
$ 27.00 |
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| Aggregate Intrinsic Value, Vested Options |
0 |
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Range of Exercise Price Range Five [Member]
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| Summarizes information with respect to stock options outstanding |
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| Range of Exercise Price, Lower (in dollars per share) |
$ 28.61 |
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| Range of Exercise Price, Upper (in dollars per share) |
$ 31.43 |
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| Number of Shares, Options Outstanding (in shares) |
195 |
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| Weighted Average, Outstanding Options Remaining Contractual Life (Years) |
3.20 |
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| Weighted Average Exercise Price, Options Outstanding (per share) |
$ 29.80 |
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| Aggregate Intrinsic Value, Options Outstanding |
0 |
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| Number of Shares, Vested Options (in shares) |
195 |
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| Weighted Average, Vested Options Remaining Contractual Life (Years) |
3.20 |
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| Weighted Average Exercise Price, Vested Options (per share) |
$ 29.80 |
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| Aggregate Intrinsic Value, Vested Options |
0 |
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Range of Exercise Price Range Six [Member]
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| Summarizes information with respect to stock options outstanding |
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| Range of Exercise Price, Lower (in dollars per share) |
$ 31.71 |
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| Range of Exercise Price, Upper (in dollars per share) |
$ 32.55 |
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| Number of Shares, Options Outstanding (in shares) |
506 |
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| Weighted Average, Outstanding Options Remaining Contractual Life (Years) |
0.31 |
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| Weighted Average Exercise Price, Options Outstanding (per share) |
$ 31.72 |
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| Aggregate Intrinsic Value, Options Outstanding |
0 |
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| Number of Shares, Vested Options (in shares) |
506 |
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| Weighted Average, Vested Options Remaining Contractual Life (Years) |
0.31 |
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| Weighted Average Exercise Price, Vested Options (per share) |
$ 31.72 |
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| Aggregate Intrinsic Value, Vested Options |
0 |
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Range of Exercise Price Range Seven [Member]
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| Summarizes information with respect to stock options outstanding |
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| Range of Exercise Price, Lower (in dollars per share) |
$ 33 |
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| Range of Exercise Price, Upper (in dollars per share) |
$ 37.1 |
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| Number of Shares, Options Outstanding (in shares) |
345 |
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| Weighted Average, Outstanding Options Remaining Contractual Life (Years) |
3.89 |
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| Weighted Average Exercise Price, Options Outstanding (per share) |
$ 35.19 |
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| Aggregate Intrinsic Value, Options Outstanding |
0 |
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| Number of Shares, Vested Options (in shares) |
345 |
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| Weighted Average, Vested Options Remaining Contractual Life (Years) |
3.89 |
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| Weighted Average Exercise Price, Vested Options (per share) |
$ 35.19 |
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| Aggregate Intrinsic Value, Vested Options |
0 |
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Range Of Exercise Price Range Eight [Member]
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| Summarizes information with respect to stock options outstanding |
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| Range of Exercise Price, Lower (in dollars per share) |
$ 37.31 |
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| Range of Exercise Price, Upper (in dollars per share) |
$ 47.32 |
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| Number of Shares, Options Outstanding (in shares) |
487 |
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| Weighted Average, Outstanding Options Remaining Contractual Life (Years) |
1.93 |
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| Weighted Average Exercise Price, Options Outstanding (per share) |
$ 44.83 |
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| Aggregate Intrinsic Value, Options Outstanding |
0 |
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| Number of Shares, Vested Options (in shares) |
487 |
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| Weighted Average, Vested Options Remaining Contractual Life (Years) |
1.93 |
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| Weighted Average Exercise Price, Vested Options (per share) |
$ 44.83 |
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| Aggregate Intrinsic Value, Vested Options |
0 |
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Range Of Exercise Price Range Nine [Member]
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| Summarizes information with respect to stock options outstanding |
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| Range of Exercise Price, Lower (in dollars per share) |
$ 47.53 |
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| Range of Exercise Price, Upper (in dollars per share) |
$ 55.79 |
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| Number of Shares, Options Outstanding (in shares) |
32 |
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| Weighted Average, Outstanding Options Remaining Contractual Life (Years) |
0.80 |
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| Weighted Average Exercise Price, Options Outstanding (per share) |
$ 49.35 |
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| Aggregate Intrinsic Value, Options Outstanding |
0 |
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| Number of Shares, Vested Options (in shares) |
32 |
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| Weighted Average, Vested Options Remaining Contractual Life (Years) |
0.80 |
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| Weighted Average Exercise Price, Vested Options (per share) |
$ 49.35 |
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| Aggregate Intrinsic Value, Vested Options |
$ 0 |
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