XML 99 R34.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Long-Term Debt (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2011
Long-Term Debt [Abstract] |
Schedule Of Long-Term Debt Interest Rate |
|  |  | September 30, |  |  |  | September 30, |
Ratio of Total Outstanding Borrowings to Borrowing Base |  | Applicable Margin for LIBOR Loans |  |  | Applicable Margin for ABR Loans |
Less than .25 to 1 |  |  | 1.50 | % |  |  | 0.00 | %
Greater than or equal to .25 to 1 but less than .50 to 1 |  |  | 1.75 | % |  |  | 0.25 | %
Greater than or equal to .50 to 1 but less than .75 to 1 |  |  | 2.00 | % |  |  | 0.50 | %
Greater than or equal to .75 to 1 but less than .90 to 1 |  |  | 2.25 | % |  |  | 0.75 | %
Greater than .90 to 1 but less than or equal 1 |  |  | 2.50 | % |  |  | 1.00 | %

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

X
- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
Name: | us-gaap_ScheduleOfDebtTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration