XML 107 R38.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Net Income Per Share (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2011
Net Income Per Share |
Schedule of Net Income Per Share |
|  | Years Ended December 31, |
|  | 2011 |  |  | 2010 |  |  | 2009 |
|  | (in millions) |
Numerator: |  |  |  |  |  |  |  |  |
Net income (loss) |  | $ | (540.7 | ) |  | $ | 7.5 |  |  | $ | 58.5 |
Net interest expense on convertible notes and convertible preferred stock dividends (a) |  | (b) |  |  |  | - |  |  |  | 0.1 |
Net income (loss) if-converted |  | $ | (540.7 | ) |  | $ | 7.5 |  |  | $ | 58.6 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common shares |  |  | 122.5 |  |  |  | 114.7 |  |  |  | 112.9 |
Less: Weighted average unvested restricted stock |  |  | 1.7 |  |  |  | 1.9 |  |  |  | 1.5 |
Denominator for basic calculation |  |  | 120.8 |  |  |  | 112.8 |  |  |  | 111.4 |
Weighted average effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |
Stock compensation awards |  |  | 0.1 |  |  |  | 0.5 |  |  |  | 0.6 |
Convertible notes |  |  | 44.5 |  |  |  | 48.1 |  |  |  | 48.1 |
Convertible preferred stock (c) |  |  | 19.2 |  |  |  | 5.2 |  |  |  | - |
Subtotal |  |  | 63.8 |  |  |  | 53.8 |  |  |  | 48.7 |
Less: shares excluded in a period of a net loss (d) |  |  | 63.8 |  |  |  | - |  |  |  | - |
Weighted average effect of dilutive securities |  |  | - |  |  |  | 53.8 |  |  |  | 48.7 |
Denominator for diluted calculation |  |  | 120.8 |  |  |  | 166.6 |  |  |  | 160.1 |
Net income (loss) per share – basic |  | $ | (4.48 | ) |  | $ | .07 |  |  | $ | .53 |
Net income (loss) per share – diluted |  | $ | (4.48 | ) |  | $ | .05 |  |  | $ | .37 |
Schedule of Securities Excluded From Earnings Per Share |
| Years Ended December 31,
| 2011 | 2010 | 2009
Options excluded from diluted earnings per share | 3.1 | 2.5 | 1.9
Warrants excluded from diluted earnings per share | 6.3 | 2.1 | -
Exercise price of excluded options | $3.72 to | $5.18 to | $5.00 to
| $14.28 | $14.28 | $16.90
Exercise price of excluded warrants | $7.50 | $7.50 | -

X
- Details
Name: | us-gaap_EarningsPerShareAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
Name: | us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of Securities Excluded From Earnings Per Share + References No definition available. + Details
Name: | usu_ScheduleOfSecuritiesExcludedFromEarningsPerShare
Namespace Prefix: | usu_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration