XML 52 R21.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Net Income Per Common Share (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2012
Earnings Per Share, Basic and Diluted [Abstract] |
Schedule of Calculation of Numerator and Denominator in Net Income Per Common Share [Table Text Block] | The following table presents the calculation of the numerator and denominator for both basic and diluted net income per common share:
| Three Months Ended
| June 30,
| 2012 |  | 2011
| Income |  | Weighted-Average Common Shares |  | Income |  | Weighted- Average Common Shares
Net income | $ | 18,847 |  |  | 54,353,811 |  |  | $ | 13,594 |  |  | 40,333,269 |
Effect of dilutive stock options | — |  |  | — |  |  | — |  |  | 1,138 |
Diluted | $ | 18,847 |  |  | 54,353,811 |  |  | $ | 13,594 |  |  | 40,334,407 |
Net income per common share: |  |  |  |  |  |  |
Basic |  |  |  | $ | 0.35 |  |  |  |  |  | $ | 0.34 |
Diluted (1) |  |  |  | $ | 0.35 |  |  |  |  |  | $ | 0.34 |
(1) | For the three months ended June 30, 2012 and June 30, 2011, the calculation of diluted net income per common share excludes the effect of 15,000 unexercised stock option awards because their inclusion would have been anti-dilutive.
| Six Months Ended
| June 30,
| 2012 |  | 2011
| Income |  | Weighted-Average Common Shares |  | Income |  | Weighted- Average Common Shares
Net income | $ | 35,323 |  |  | 51,930,581 |  |  | $ | 23,874 |  |  | 36,762,811 |
Effect of dilutive stock options | — |  |  | — |  |  | — |  |  | 2,209 |
Diluted | $ | 35,323 |  |  | 51,930,581 |  |  | $ | 23,874 |  |  | 36,765,020 |
Net income per common share: |  |  |  |  |  |  |
Basic |  |  |  | $ | 0.68 |  |  |  |  |  | $ | 0.65 |
Diluted (1) |  |  |  | $ | 0.68 |  |  |  |  |  | $ | 0.65 |
(1) | For the six months ended June 30, 2012, the calculation of diluted net income per common share excludes the effect of 15,000 unexercised stock option awards because their inclusion would have been anti-dilutive.

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

X
- Definition Tabular disclosure of the numerators and the denominators of the basic and diluted per-share (or per-unit) computations for income from continuing operations, including the effect that has been given to preferred dividends. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfCalculationOfNumeratorAndDenominatorInEarningsPerShareTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration