Environmental Obligations	12 Months Ended
Dec. 31, 2011
Environmental Obligations [Abstract]
ENVIRONMENTAL OBLIGATIONS	6. ENVIRONMENTAL OBLIGATIONS We are subject to numerous existing federal, state and local laws and regulations, including matters relating to the protection of the environment such as the remediation of known contamination and the retirement and decommissioning or removal of long-lived assets including buildings containing hazardous materials, USTs and other equipment. Environmental expenses are principally attributable to remediation costs which include installing, operating, maintaining and decommissioning remediation systems, monitoring contamination and governmental agency reporting incurred in connection with contaminated properties. We seek reimbursement from state UST remediation funds related to these environmental expenses where available. We do not maintain pollution legal liability insurance to protect from potential future claims related to known and unknown environmental liabilities. We enter into leases and various other agreements which allocate responsibility for known and unknown environmental liabilities by establishing the percentage and method of allocating responsibility between the parties. In accordance with the leases with certain tenants, we have agreed to bring the leased properties with known environmental contamination to within applicable standards, and to either regulatory or contractual closure (“Closure”). Generally, upon achieving Closure at each individual property, our environmental liability under the lease for that property will be satisfied and future remediation obligations will be the responsibility of our tenant. Our tenants are directly responsible to pay for (i) remediation of environmental contamination they cause and compliance with various environmental laws and regulations as the operators of our properties, and (ii) environmental liabilities allocated to them under the terms of our leases and various other agreements. Generally the liability for the retirement and decommissioning or removal of USTs and other equipment is the responsibility of our tenants. We are contingently liable for these obligations in the event that the tenants do not satisfy their responsibilities. A liability has not been accrued for obligations that are the responsibility of our tenants, other than the $47,874,000 accrued in the fourth quarter of 2011 for the Marketing Environmental Liabilities based on the tenants’ history of paying such obligations and/or our assessment of their financial ability and intent to pay their share of such costs. However, there can be no assurance that our assessments are correct or that our tenants who have paid their obligations in the past will continue to do so. It is possible that our assumptions regarding the ultimate allocation method and share of responsibility that we used to allocate environmental liabilities may change, which may result in material adjustments to the amounts recorded for environmental litigation accruals and environmental remediation liabilities. We are required to accrue for environmental liabilities that we believe are allocable to others under various other agreements if we determine that it is probable that the counterparty will not meet its environmental obligations. The ultimate resolution of these matters could cause a material adverse effect on our business, financial condition, results of operations, liquidity, ability to pay dividends or stock price. The estimated future costs for known environmental remediation requirements are accrued when it is probable that a liability has been incurred and a reasonable estimate of fair value can be made. The accrued liability is the aggregate of the best estimate of the fair value of cost for each component of the liability net of estimated recoveries from state UST remediation funds considering estimated recovery rates developed from prior experience with the funds. Environmental exposures are difficult to assess and estimate for numerous reasons, including the extent of contamination, alternative treatment methods that may be applied, location of the property which subjects it to differing local laws and regulations and their interpretations, as well as the time it takes to remediate contamination. In developing our liability for estimated environmental remediation costs on a property by property basis, we consider among other things, enacted laws and regulations, assessments of contamination and surrounding geology, quality of information available, currently available technologies for treatment, alternative methods of remediation and prior experience. Environmental accruals are based on estimates which are subject to significant change, and are adjusted as the remediation treatment progresses, as circumstances change and as environmental contingencies become more clearly defined and reasonably estimable. Of the 797 properties subject to the Master Lease as of December 31, 2011, we had agreed to pay all costs relating to, and to indemnify Marketing for, certain environmental liabilities at 160 retail properties that have not achieved Closure and are scheduled in the Master Lease, and provide limited indemnification to Marketing for certain pre-existing conditions at six of the terminals we own and lease to Marketing. In the fourth quarter of 2011, since we could no longer assume that Marketing would be able to meet its environmental remediation obligations at 246 properties and its obligations to remove underground storage tanks at the end of their useful life or earlier if circumstances warrant, we accrued $47,874,000 as the aggregate Marketing Environmental Liabilities. In conjunction with recording the Marketing Environmental Liabilities, we increased the carrying value for each of the related properties by the amount of the related estimated environmental obligation and simultaneously recorded impairment charges aggregating $17,017,000 where the increased carrying value of the property exceeded its estimated fair value. The recognition of the Marketing Environmental Liabilities and the increase in carrying value of the properties are non-cash transactions which do not appear on the face of the consolidated statements of cash flows. The increases in carrying values of the properties will be depreciated over the estimated remaining life of the underground storage tank, a ten year period if the increase in carrying value related to environmental remediation obligations or such shorter period if circumstances warrant, such as the remaining lease term for properties we lease from others. The actual amount of the Marketing Environmental Liabilities may be significantly higher and we can provide no assurance as to the accuracy of its estimates. Environmental obligations are measured at fair value based on their expected future net cash flows which have been adjusted for inflation and discounted to present value. The estimated environmental remediation cost and accretion expense included in environmental expenses included in continuing operations in our consolidated statements of operations aggregated $2,557,000, $2,740,000 and $3,856,000 for 2011, 2010 and 2009, respectively. In addition to estimated environmental remediation costs, environmental expenses also include project management fees, legal fees and provisions for environmental litigation loss reserves. As of December 31, 2011,2010 and 2009, we had accrued $57,700,000, $10,908,000 and $12,645,000, respectively, as management’s best estimate of the fair value of reasonably estimable environmental remediation costs net of estimated recoveries and obligations to remove USTs. The environmental liabilities were subsequently accreted for the change in present value due to the passage of time and, accordingly, $899,000, $775,000 and $884,000 of net accretion expense was recorded for the years ended December 31, 2011, 2010 and 2009, respectively, substantially all of which is included in environmental expenses. We cannot predict what environmental legislation or regulations may be enacted in the future or how existing laws or regulations will be administered or interpreted with respect to products or activities to which they have not previously been applied. We cannot predict if state UST fund programs will be administered and funded in the future in a manner that is consistent with past practices and if future environmental spending will continue to be eligible for reimbursement at historical recovery rates under these programs. Compliance with more stringent laws or regulations, as well as more vigorous enforcement policies of the regulatory agencies or stricter interpretation of existing laws, which may develop in the future, could have an adverse effect on our financial position, or that of its tenants, and could require substantial additional expenditures for future remediation. In view of the uncertainties associated with environmental expenditures contingencies related to our tenants and other parties, however, we believe it is possible that the fair value of future actual net expenditures could be substantially higher than amounts currently recorded by us. Adjustments to accrued liabilities for environmental remediation costs will be reflected in our financial statements as they become probable and a reasonable estimate of fair value can be made. Future environmental expenses could cause a material adverse effect on our business, financial condition, results of operations, liquidity, ability to pay dividends or stock price.

Environmental Obligations

12 Months Ended

Dec. 31, 2011

Environmental Obligations [Abstract]

6. ENVIRONMENTAL OBLIGATIONS

We are subject to numerous existing federal, state and local laws and regulations, including matters relating to the protection of the environment such as the remediation of known contamination and the retirement and decommissioning or removal of long-lived assets including buildings containing hazardous materials, USTs and other equipment. Environmental expenses are principally attributable to remediation costs which include installing, operating, maintaining and decommissioning remediation systems, monitoring contamination and governmental agency reporting incurred in connection with contaminated properties. We seek reimbursement from state UST remediation funds related to these environmental expenses where available. We do not maintain pollution legal liability insurance to protect from potential future claims related to known and unknown environmental liabilities.

We enter into leases and various other agreements which allocate responsibility for known and unknown environmental liabilities by establishing the percentage and method of allocating responsibility between the parties. In accordance with the leases with certain tenants, we have agreed to bring the leased properties with known environmental contamination to within applicable standards, and to either regulatory or contractual closure (“Closure”). Generally, upon achieving Closure at each individual property, our environmental liability under the lease for that property will be satisfied and future remediation obligations will be the responsibility of our tenant.

Our tenants are directly responsible to pay for (i) remediation of environmental contamination they cause and compliance with various environmental laws and regulations as the operators of our properties, and (ii) environmental liabilities allocated to them under the terms of our leases and various other agreements. Generally the liability for the retirement and decommissioning or removal of USTs and other equipment is the responsibility of our tenants. We are contingently liable for these obligations in the event that the tenants do not satisfy their responsibilities. A liability has not been accrued for obligations that are the responsibility of our tenants, other than the $47,874,000 accrued in the fourth quarter of 2011 for the Marketing Environmental Liabilities based on the tenants’ history of paying such obligations and/or our assessment of their financial ability and intent to pay their share of such costs. However, there can be no assurance that our assessments are correct or that our tenants who have paid their obligations in the past will continue to do so.

It is possible that our assumptions regarding the ultimate allocation method and share of responsibility that we used to allocate environmental liabilities may change, which may result in material adjustments to the amounts recorded for environmental litigation accruals and environmental remediation liabilities. We are required to accrue for environmental liabilities that we believe are allocable to others under various other agreements if we determine that it is probable that the counterparty will not meet its environmental obligations. The ultimate resolution of these matters could cause a material adverse effect on our business, financial condition, results of operations, liquidity, ability to pay dividends or stock price.

The estimated future costs for known environmental remediation requirements are accrued when it is probable that a liability has been incurred and a reasonable estimate of fair value can be made. The accrued liability is the aggregate of the best estimate of the fair value of cost for each component of the liability net of estimated recoveries from state UST remediation funds considering estimated recovery rates developed from prior experience with the funds.

Environmental exposures are difficult to assess and estimate for numerous reasons, including the extent of contamination, alternative treatment methods that may be applied, location of the property which subjects it to differing local laws and regulations and their interpretations, as well as the time it takes to remediate contamination. In developing our liability for estimated environmental remediation costs on a property by property basis, we consider among other things, enacted laws and regulations, assessments of contamination and surrounding geology, quality of information available, currently available technologies for treatment, alternative methods of remediation and prior experience. Environmental accruals are based on estimates which are subject to significant change, and are adjusted as the remediation treatment progresses, as circumstances change and as environmental contingencies become more clearly defined and reasonably estimable.

Of the 797 properties subject to the Master Lease as of December 31, 2011, we had agreed to pay all costs relating to, and to indemnify Marketing for, certain environmental liabilities at 160 retail properties that have not achieved Closure and are scheduled in the Master Lease, and provide limited indemnification to Marketing for certain pre-existing conditions at six of the terminals we own and lease to Marketing. In the fourth quarter of 2011, since we could no longer assume that Marketing would be able to meet its environmental remediation obligations at 246 properties and its obligations to remove underground storage tanks at the end of their useful life or earlier if circumstances warrant, we accrued $47,874,000 as the aggregate Marketing Environmental Liabilities. In conjunction with recording the Marketing Environmental Liabilities, we increased the carrying value for each of the related properties by the amount of the related estimated environmental obligation and simultaneously recorded impairment charges aggregating $17,017,000 where the increased carrying value of the property exceeded its estimated fair value. The recognition of the Marketing Environmental Liabilities and the increase in carrying value of the properties are non-cash transactions which do not appear on the face of the consolidated statements of cash flows. The increases in carrying values of the properties will be depreciated over the estimated remaining life of the underground storage tank, a ten year period if the increase in carrying value related to environmental remediation obligations or such shorter period if circumstances warrant, such as the remaining lease term for properties we lease from others. The actual amount of the Marketing Environmental Liabilities may be significantly higher and we can provide no assurance as to the accuracy of its estimates.

Environmental obligations are measured at fair value based on their expected future net cash flows which have been adjusted for inflation and discounted to present value. The estimated environmental remediation cost and accretion expense included in environmental expenses included in continuing operations in our consolidated statements of operations aggregated $2,557,000, $2,740,000 and $3,856,000 for 2011, 2010 and 2009, respectively. In addition to estimated environmental remediation costs, environmental expenses also include project management fees, legal fees and provisions for environmental litigation loss reserves.

As of December 31, 2011,2010 and 2009, we had accrued $57,700,000, $10,908,000 and $12,645,000, respectively, as management’s best estimate of the fair value of reasonably estimable environmental remediation costs net of estimated recoveries and obligations to remove USTs. The environmental liabilities were subsequently accreted for the change in present value due to the passage of time and, accordingly, $899,000, $775,000 and $884,000 of net accretion expense was recorded for the years ended December 31, 2011, 2010 and 2009, respectively, substantially all of which is included in environmental expenses.

We cannot predict what environmental legislation or regulations may be enacted in the future or how existing laws or regulations will be administered or interpreted with respect to products or activities to which they have not previously been applied. We cannot predict if state UST fund programs will be administered and funded in the future in a manner that is consistent with past practices and if future environmental spending will continue to be eligible for reimbursement at historical recovery rates under these programs. Compliance with more stringent laws or regulations, as well as more vigorous enforcement policies of the regulatory agencies or stricter interpretation of existing laws, which may develop in the future, could have an adverse effect on our financial position, or that of its tenants, and could require substantial additional expenditures for future remediation.

In view of the uncertainties associated with environmental expenditures contingencies related to our tenants and other parties, however, we believe it is possible that the fair value of future actual net expenditures could be substantially higher than amounts currently recorded by us. Adjustments to accrued liabilities for environmental remediation costs will be reflected in our financial statements as they become probable and a reasonable estimate of fair value can be made. Future environmental expenses could cause a material adverse effect on our business, financial condition, results of operations, liquidity, ability to pay dividends or stock price.

- Definition

The entire disclosure for environmental loss contingencies, such as presence of hazardous waste, relevant information from reports issued by regulators, and estimated costs to achieve compliance with regulatory requirements. This element may be used for all of an entity's disclosures about environmental loss contingencies.

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