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Share-based Compensation Plans and Awards - Stock Options by Exercise Price Range (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
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9 Months Ended |
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Sep. 30, 2012
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Number outstanding (shares) |
13,369 |
| Number outstanding, weighted average remaining contractual term (in years) |
6 years 6 months 4 days |
| Number outstanding, weighted average exercise price (usd per share) |
$ 14.84 |
| Number exercisable (shares) |
6,990 |
| Number exercisable, weighted average exercise price (usd per share) |
$ 7.63 |
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$0.00 - 3.60 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Range of exercise price, lower (usd per share) |
$ 0 |
| Range of exercise price, upper (usd per share) |
$ 3.60 |
| Number outstanding (shares) |
1,896 |
| Number outstanding, weighted average remaining contractual term (in years) |
2 years 9 months 22 days |
| Number outstanding, weighted average exercise price (usd per share) |
$ 2.25 |
| Number exercisable (shares) |
1,811 |
| Number exercisable, weighted average exercise price (usd per share) |
$ 2.21 |
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$3.61 - 7.20 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Range of exercise price, lower (usd per share) |
$ 3.61 |
| Range of exercise price, upper (usd per share) |
$ 7.20 |
| Number outstanding (shares) |
1,205 |
| Number outstanding, weighted average remaining contractual term (in years) |
5 years 1 month 10 days |
| Number outstanding, weighted average exercise price (usd per share) |
$ 5.17 |
| Number exercisable (shares) |
1,061 |
| Number exercisable, weighted average exercise price (usd per share) |
$ 5.06 |
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$7.21 - 10.80 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Range of exercise price, lower (usd per share) |
$ 7.21 |
| Range of exercise price, upper (usd per share) |
$ 10.80 |
| Number outstanding (shares) |
4,061 |
| Number outstanding, weighted average remaining contractual term (in years) |
6 years 9 months 11 days |
| Number outstanding, weighted average exercise price (usd per share) |
$ 9.09 |
| Number exercisable (shares) |
3,291 |
| Number exercisable, weighted average exercise price (usd per share) |
$ 9.17 |
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$10.81 - 14.40 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Range of exercise price, lower (usd per share) |
$ 10.81 |
| Range of exercise price, upper (usd per share) |
$ 14.40 |
| Number outstanding (shares) |
220 |
| Number outstanding, weighted average remaining contractual term (in years) |
6 years 9 months 11 days |
| Number outstanding, weighted average exercise price (usd per share) |
$ 13.18 |
| Number exercisable (shares) |
113 |
| Number exercisable, weighted average exercise price (usd per share) |
$ 13.12 |
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$14.41 - 18.00 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Range of exercise price, lower (usd per share) |
$ 14.41 |
| Range of exercise price, upper (usd per share) |
$ 18 |
| Number outstanding (shares) |
2,490 |
| Number outstanding, weighted average remaining contractual term (in years) |
7 years 6 months 18 days |
| Number outstanding, weighted average exercise price (usd per share) |
$ 17.52 |
| Number exercisable (shares) |
695 |
| Number exercisable, weighted average exercise price (usd per share) |
$ 17.12 |
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$18.01 - 21.60 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Range of exercise price, lower (usd per share) |
$ 18.01 |
| Range of exercise price, upper (usd per share) |
$ 21.60 |
| Number outstanding (shares) |
47 |
| Number outstanding, weighted average remaining contractual term (in years) |
8 years 4 months 13 days |
| Number outstanding, weighted average exercise price (usd per share) |
$ 21.42 |
| Number exercisable (shares) |
19 |
| Number exercisable, weighted average exercise price (usd per share) |
$ 21.41 |
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$21.61 - 25.20 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Range of exercise price, lower (usd per share) |
$ 21.61 |
| Range of exercise price, upper (usd per share) |
$ 25.20 |
| Number outstanding (shares) |
1,150 |
| Number outstanding, weighted average remaining contractual term (in years) |
7 years 10 months 2 days |
| Number outstanding, weighted average exercise price (usd per share) |
$ 24.00 |
| Number exercisable (shares) |
0 |
| Number exercisable, weighted average exercise price (usd per share) |
$ 0.00 |
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$28.81 - 32.40 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Range of exercise price, lower (usd per share) |
$ 28.81 |
| Range of exercise price, upper (usd per share) |
$ 32.40 |
| Number outstanding (shares) |
1,150 |
| Number outstanding, weighted average remaining contractual term (in years) |
7 years 10 months 2 days |
| Number outstanding, weighted average exercise price (usd per share) |
$ 30.00 |
| Number exercisable (shares) |
0 |
| Number exercisable, weighted average exercise price (usd per share) |
$ 0.00 |
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$32.41 - 36.00 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Range of exercise price, lower (usd per share) |
$ 32.41 |
| Range of exercise price, upper (usd per share) |
$ 36 |
| Number outstanding (shares) |
1,150 |
| Number outstanding, weighted average remaining contractual term (in years) |
7 years 10 months 2 days |
| Number outstanding, weighted average exercise price (usd per share) |
$ 36.00 |
| Number exercisable (shares) |
0 |
| Number exercisable, weighted average exercise price (usd per share) |
$ 0.00 |