|
Commitments - Purchase Obligations (Details) (USD $)
|
Jun. 30, 2013
|
|---|---|
|
J. Thomas Wilson
|
|
| Purchase Commitment, Excluding Long-term Commitment [Line Items] | |
| Business Acquisition, Contingent Consideration, Potential Cash Payment, Interest, Percentage | 52.00% |
|
Accrued and Other Liabilities
|
|
| Purchase Commitment, Excluding Long-term Commitment [Line Items] | |
| Accrued income taxes current | $ 1,000,000 |
|
Prepaid and Other Assets
|
|
| Purchase Commitment, Excluding Long-term Commitment [Line Items] | |
| Amount of income tax liability if not paid by related party | 1,000,000 |
|
Nautilus Poplar, LLC (NP) | Maximum
|
|
| Purchase Commitment, Excluding Long-term Commitment [Line Items] | |
| Contingent consideration potential cash payment | 5,000,000.0 |
|
Exploration and Capital Expenditures Commitments
|
|
| Purchase Commitment, Excluding Long-term Commitment [Line Items] | |
| Firm Commitments | $ 5,700,000 |
| X | ||||||||||
|
- Definition
Business Combination, Contingent Consideration, Potential Cash Payment, Interest, Percentage No definition available.
|
| X | ||||||||||
|
- Definition
Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of potential cash payments that could result from the contingent consideration arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying amount due after one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The floor amount as of the balance sheet date that the entity must expend to satisfy the terms of disclosed arrangements (excluding long-term commitments) in which the entity has agreed to expend funds to procure goods or services from one or more suppliers, other than under a long-term purchase commitment or an unconditional purchase obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|