XML 38 R29.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Earnings Per Common Share (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2012
Earnings Per Common Share [Abstract] |
Schedule Of Basic Weighted Average Shares Reconciles To Diluted Weighted Average Shares |
|  | Three Months Ended March 31, |
|  | 2012 |  |  | 2011 |
|  | (In thousands) |
Basic weighted average common shares outstanding |  |  | 82,804 |  |  |  | 81,430 |
Dilutive effect of stock options, unvested shares, and DCUs |  |  | 1,098 |  |  |  | 1,818 |
Diluted weighted average common shares outstanding |  |  | 83,902 |  |  |  | 83,248 |

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 the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 260 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfWeightedAverageNumberOfSharesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration