Summary of Significant Accounting Policies	3 Months Ended
Mar. 31, 2013
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Basis of Presentation The accompanying unaudited consolidated financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. In preparing the consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and revenues and expenses for the period. Actual results could differ significantly from those estimates. In addition, operating results for the three month period ended March 31, 2013 are not necessarily indicative of the results that may be expected for the year ending December 31, 2013. The Company consolidates certain entities if it is deemed to be the primary beneficiary in a variable interest entity (VIE), as defined in Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) Topic on Consolidation. The Topic on Consolidation requires the consolidation of VIEs in which an enterprise has a controlling financial interest. A controlling financial interest will have both of the following characteristics: the power to direct the activities of a VIE that most significantly impact the VIE's economic performance and the obligation to absorb losses of the VIE that could potentially be significant to the VIE or the right to receive benefits from the VIE that could potentially be significant to the VIE. This topic requires an ongoing reassessment of and eliminates the quantitative approach previously required for determining whether a company is the primary beneficiary and requires enhanced disclosures on variable interest entities. The equity method of accounting is applied to entities in which the Company is not the primary beneficiary as defined in the Consolidation Topic of the FASB ASC, or does not have effective control, but can exercise influence over the entity with respect to its operations and major decisions. The Company reports its noncontrolling interests as required by the Consolidation Topic of the FASB ASC. Noncontrolling interest is the portion of equity (net assets) in a subsidiary not attributable, directly or indirectly, to a parent. The ownership interests in the subsidiary that are held by owners other than the parent are noncontrolling interests. Such noncontrolling interests are reported on the consolidated balance sheets within equity, separately from the Company's equity. On the consolidated statements of income, revenues, expenses and net income or loss from less-than-wholly-owned subsidiaries are reported at the consolidated amounts, including both the amounts attributable to the Company and noncontrolling interests. Consolidated statements of changes in shareholders' equity are included for both quarterly and annual financial statements, including beginning balances, activity for the period and ending balances for equity, noncontrolling interests and total equity. The Company does not have any redeemable noncontrolling interests under the scope of the Distinguishing Liabilities from Equity guidance of the FASB ASC. The consolidated balance sheet as of December 31, 2012 has been derived from the audited consolidated balance sheet at that date but does not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2012 filed with the Securities and Exchange Comission (SEC) on February 27, 2013. Operating Segments For financial reporting purposes, the Company groups its investments into four reportable operating segments: entertainment, education, recreation and other. See Note 16 for financial information related to these operating segments. Rental Properties Rental properties are carried at cost less accumulated depreciation. Costs incurred for the acquisition and development of the properties are capitalized. Depreciation is computed using the straight-line method over the estimated useful lives of the assets, which generally are estimated to be 40 years for buildings and 3 to 25 years for furniture, fixtures and equipment. Tenant improvements, including allowances, are depreciated over the shorter of the base term of the lease or the estimated useful life. Expenditures for ordinary maintenance and repairs are charged to operations in the period incurred. Significant renovations and improvements which improve or extend the useful life of the asset are capitalized and depreciated over their estimated useful life. Management reviews a property for impairment whenever events or changes in circumstances indicate that the carrying value of a property may not be recoverable. The review of recoverability is based on an estimate of undiscounted future cash flows expected to result from its use and eventual disposition. If impairment exists due to the inability to recover the carrying value of the property, an impairment loss is recorded to the extent that the carrying value of the property exceeds its estimated fair value. The Company evaluates the held-for-sale classification of its real estate as of the end of each quarter. Assets that are classified as held for sale are recorded at the lower of their carrying amount or fair value less costs to sell. Assets are generally classified as held for sale once management has initiated an active program to market them for sale and has received a firm purchase commitment that is expected to close within one year. The results of operations of these real estate properties are reflected as discontinued operations in all periods reported. On occasion, the Company will receive unsolicited offers from third parties to buy individual Company properties. Under these circumstances, the Company will classify the properties as held for sale when a sales contract is executed with no contingencies and the prospective buyer has funds at risk to ensure performance. Allowance for Doubtful Accounts The Company makes quarterly estimates of the collectability of its accounts receivable related to base rents, tenant escalations (straight-line rents), reimbursements and other revenue or income. The Company specifically analyzes trends in accounts receivable, historical bad debts, customer creditworthiness, current economic trends and changes in customer payment terms when evaluating the adequacy of its allowance for doubtful accounts. When evaluating customer creditworthiness, management reviews the periodic financial statements for significant tenants and specifically evaluates the strength and material changes in net operating income, coverage ratios, leverage and other factors to assess the tenant's credit quality. In addition, when customers are in bankruptcy, the Company makes estimates of the expected recovery of pre-petition administrative and damage claims. These estimates have a direct impact on the Company's net income. Revenue Recognition Rents that are fixed and determinable are recognized on a straight-line basis over the minimum terms of the leases. Base rent escalation on leases that are dependent upon increases in the Consumer Price Index (CPI) is recognized when known. In addition, most of the Company's tenants are subject to additional rents if gross revenues of the properties exceed certain thresholds defined in the lease agreements (percentage rents). Percentage rents as well as participating interest for those mortgage agreements that contain similar such clauses are recognized at the time when specific triggering events occur as provided by the lease or mortgage agreements. Rental revenue included percentage rents of $0.4 million and $0.5 million for the three months ended March 31, 2013 and 2012, respectively. Lease termination fees are recognized when the related leases are canceled and the Company has no obligation to provide services to such former tenants. No termination fees were recognized during the three months ended March 31, 2013 and 2012. Direct financing lease income is recognized on the effective interest method to produce a level yield on funds not yet recovered. Estimated unguaranteed residual values at the date of lease inception represent management's initial estimates of fair value of the leased assets at the expiration of the lease, not to exceed original cost. Significant assumptions used in estimating residual values include estimated net cash flows over the remaining lease term and expected future real estate values. The Company evaluates on an annual basis (or more frequently if necessary) the collectability of its direct financing lease receivable and unguaranteed residual value to determine whether they are impaired. A direct financing lease receivable is considered to be impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due according to the existing contractual terms. When a direct financing lease receivable is considered to be impaired, the amount of loss is calculated by comparing the recorded investment to the value determined by discounting the expected future cash flows at the direct financing lease receivable's effective interest rate or to the fair value of the underlying collateral, less costs to sell, if such receivable is collateralized. Mortgage Notes and Other Notes Receivable Mortgage notes and other notes receivable, including related accrued interest receivable, consist of loans originated by the Company and the related accrued and unpaid interest income as of the balance sheet date. Mortgage notes and other notes receivable are initially recorded at the amount advanced to the borrower and the Company defers certain loan origination and commitment fees, net of certain origination costs, and amortizes them over the term of the related loan. Interest income on performing loans is accrued as earned. The Company evaluates the collectability of both interest and principal of each of its loans to determine whether it is impaired. A loan is considered to be impaired when, based on current information and events, the Company determines that it is probable that it will be unable to collect all amounts due according to the existing contractual terms. An insignificant delay or shortfall in amounts of payments does not necessarily result in the loan being identified as impaired. When a loan is considered to be impaired, the amount of loss, if any, is calculated by comparing the recorded investment to the value determined by discounting the expected future cash flows at the loan’s effective interest rate or to the fair value of the Company’s interest in the underlying collateral, less costs to sell, if the loan is collateral dependent. For impaired loans, interest income is recognized on a cash basis, unless the Company determines based on the loan to estimated fair value ratio the loan should be on the cost recovery method, and any cash payments received would then be reflected as a reduction of principal. Interest income recognition is recommenced if and when the impaired loan becomes contractually current and performance is demonstrated to be resumed. Concentrations of Risk American Multi-Cinema, Inc. (AMC) was the lessee of a substantial portion (31%) of the megaplex theatre rental properties held by the Company (including joint venture properties) at March 31, 2013 as a result of a series of sale leaseback transactions pertaining to AMC megaplex theatres. A substantial portion of the Company’s total revenues (approximately $21.6 million or 26% and $25.7 million or 33%, for the three months ended March 31, 2013 and 2012, respectively) result from the revenue from AMC under the leases, or from its parent, AMC Entertainment, Inc. (AMCE), as the guarantor of AMC’s obligations under the leases. On August 30, 2012, Dalian Wanda Group Co., Ltd. (Wanda) announced that it completed its acquisition of AMC Entertainment Holdings, Inc., the parent of AMCE (AMCE Holdings), in a transaction valued at $2.7 billion. Upon completion of the acquisition, AMCE Holdings became a wholly-owned subsidiary of Wanda and transitioned their year-end to a calendar year-end as of December 31, 2012. AMCE publicly reported total assets of $4.3 billion and $3.6 billion and total stockholders' equity of $774.1 million and $154.3 million at December 31, 2012 and March 29, 2012, respectively. Additionally, AMCE publicly reported total liabilities of $3.5 billion at both December 31, 2012 and March 29, 2012. AMCE publicly reported net earnings of $57.3 million for the transition period beginning on March 30, 2012 and ending December 31, 2012, a net loss of $82.0 million for the fifty-two weeks ended March 29, 2012 and a net loss of $122.9 million for the fifty-two weeks ended March 31, 2011. AMCE has publicly held debt and the foregoing financial information was reported in its consolidated financial information which is publicly available. For the three months ended March 31, 2013 and 2012, approximately $10.7 million or 12.8%, and $10.9 million or 14%, respectively, of total revenue was derived from the Company's four entertainment retail centers in Ontario, Canada. The Company's wholly owned subsidiaries that hold the four Canadian entertainment retail centers and third-party debt represent approximately $144.7 million or 10%, and $147.3 million or 10%, of the Company's net assets as of March 31, 2013 and December 31, 2012, respectively. Share-Based Compensation Share-based compensation to employees of the Company is granted pursuant to the Company's Annual Incentive Program and Long-Term Incentive Plan. Share-based compensation to non-employee Trustees of the Company is granted pursuant to the Company's Trustee compensation program and shares are issued under the 2007 Equity Incentive Plan. Share based compensation expense consists of share option expense, amortization of nonvested share grants, and amortization of share units issued to non-employee Trustees for payment of their annual retainers. Share based compensation is included in general and administrative expense in the accompanying consolidated statements of income, and totaled $1.5 million for both the three months ended March 31, 2013 and 2012. Share Options Share options are granted to employees pursuant to the Long-Term Incentive Plan and to non-employee Trustees for their service to the Company. The fair value of share options granted is estimated at the date of grant using the Black-Scholes option pricing model. Share options granted to employees vest over a period of four years and share option expense for these options is recognized on a straight-line basis over the vesting period. Share options granted to non-employee Trustees vest immediately but may not be exercised for a period of one year from the grant date. Share option expense for non-employee Trustees is recognized on a straight-line basis over the year of service by the non-employee Trustees. Total expense recognized related to share options was $222 thousand and $256 thousand for the three months ended March 31, 2013 and 2012, respectively. Nonvested Shares Issued to Employees The Company grants nonvested shares to employees pursuant to both the Annual Incentive Program and the Long-Term Incentive Plan. The Company amortizes the expense related to the nonvested shares awarded to employees under the Long-Term Incentive Plan and the premium awarded under the nonvested share alternative of the Annual Incentive Program on a straight-line basis over the future vesting period (three to four years). Total expense recognized related to all nonvested shares was $1.2 million and $1.1 million for the three months ended March 31, 2013 and 2012, respectively. Restricted Share Units Issued to Non-Employee Trustees The Company issues restricted share units to non-employee Trustees for payment of their annual retainers. The fair value of the share units granted was based on the share price at the date of grant. The share units vest upon the earlier of the day preceding the next annual meeting of shareholders or a change of control. The settlement date for the shares is selected by the non-employee Trustee, and ranges from one year from the grant date to upon termination of service. This expense is amortized by the Company on a straight-line basis over the year of service by the non-employee Trustees. Total expense recognized related to shares issued to non-employee Trustees was $122 thousand, and $126 thousand for the three months ended March 31, 2013 and 2012, respectively. Derivative Instruments The Company has acquired certain derivative instruments to reduce exposure to fluctuations in foreign currency exchange rates and variable interest rates. The Company has established policies and procedures for risk assessment and the approval, reporting and monitoring of derivative financial instrument activities. These derivatives consist of foreign currency forward contracts, cross currency swaps and interest rate swaps. The Company records all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Derivatives may also be designated as hedges of the foreign currency exposure of a net investment in a foreign operation. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge or the earnings effect of the hedged forecasted transactions in a cash flow hedge. The Company may enter into derivative contracts that are intended to economically hedge certain of its risk, even though hedge accounting does not apply or the Company elects not to apply hedge accounting. The Company has made an accounting policy election under FASB ASU 2011-04 (Amendments to ASC 820) to use the exception in ASC 820-10-35-18D (commonly referred to as the “portfolio exception”) with respect to measuring counterparty credit risk for derivative instruments, consistent with the guidance in ASC 820-10-35-18G. The Company further documents that it meets the criteria for the exception in ASC 820-10-35-18E. Reclassifications Certain reclassifications have been made to the prior period amounts to conform to the current period presentation primarily for asset groups that qualify for presentation as discontinued operations.

Summary of Significant Accounting Policies

Basis of Presentation

The accompanying unaudited consolidated financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. In preparing the consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and revenues and expenses for the period. Actual results could differ significantly from those estimates. In addition, operating results for the three month period ended March 31, 2013 are not necessarily indicative of the results that may be expected for the year ending December 31, 2013.

The Company consolidates certain entities if it is deemed to be the primary beneficiary in a variable interest entity (VIE), as defined in Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) Topic on Consolidation. The Topic on Consolidation requires the consolidation of VIEs in which an enterprise has a controlling financial interest. A controlling financial interest will have both of the following characteristics: the power to direct the activities of a VIE that most significantly impact the VIE's economic performance and the obligation to absorb losses of the VIE that could potentially be significant to the VIE or the right to receive benefits from the VIE that could potentially be significant to the VIE. This topic requires an ongoing reassessment of and eliminates the quantitative approach previously required for determining whether a company is the primary beneficiary and requires enhanced disclosures on variable interest entities. The equity method of accounting is applied to entities in which the Company is not the primary beneficiary as defined in the Consolidation Topic of the FASB ASC, or does not have effective control, but can exercise influence over the entity with respect to its operations and major decisions.

The Company reports its noncontrolling interests as required by the Consolidation Topic of the FASB ASC. Noncontrolling interest is the portion of equity (net assets) in a subsidiary not attributable, directly or indirectly, to a parent. The ownership interests in the subsidiary that are held by owners other than the parent are noncontrolling interests. Such noncontrolling interests are reported on the consolidated balance sheets within equity, separately from the Company's equity. On the consolidated statements of income, revenues, expenses and net income or loss from less-than-wholly-owned subsidiaries are reported at the consolidated amounts, including both the amounts attributable to the Company and noncontrolling interests. Consolidated statements of changes in shareholders' equity are included for both quarterly and annual financial statements, including beginning balances, activity for the period and ending balances for equity, noncontrolling interests and total equity. The Company does not have any redeemable noncontrolling interests under the scope of the Distinguishing Liabilities from Equity guidance of the FASB ASC.

The consolidated balance sheet as of December 31, 2012 has been derived from the audited consolidated balance sheet at that date but does not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2012 filed with the Securities and Exchange Comission (SEC) on February 27, 2013.

Operating Segments

For financial reporting purposes, the Company groups its investments into four reportable operating segments: entertainment, education, recreation and other. See Note 16 for financial information related to these operating segments.

Rental Properties

Rental properties are carried at cost less accumulated depreciation. Costs incurred for the acquisition and development of the properties are capitalized. Depreciation is computed using the straight-line method over the estimated useful lives of the assets, which generally are estimated to be 40 years for buildings and 3 to 25 years for furniture, fixtures and equipment. Tenant improvements, including allowances, are depreciated over the shorter of the base term of the lease or the estimated useful life. Expenditures for ordinary maintenance and repairs are charged to operations in the period incurred. Significant renovations and improvements which improve or extend the useful life of the asset are capitalized and depreciated over their estimated useful life.

Management reviews a property for impairment whenever events or changes in circumstances indicate that the carrying value of a property may not be recoverable. The review of recoverability is based on an estimate of undiscounted future cash flows expected to result from its use and eventual disposition. If impairment exists due to the inability to recover the carrying value of the property, an impairment loss is recorded to the extent that the carrying value of the property exceeds its estimated fair value.

The Company evaluates the held-for-sale classification of its real estate as of the end of each quarter. Assets that are classified as held for sale are recorded at the lower of their carrying amount or fair value less costs to sell. Assets are generally classified as held for sale once management has initiated an active program to market them for sale and has received a firm purchase commitment that is expected to close within one year. The results of operations of these real estate properties are reflected as discontinued operations in all periods reported. On occasion, the Company will receive unsolicited offers from third parties to buy individual Company properties. Under these circumstances, the Company will classify the properties as held for sale when a sales contract is executed with no contingencies and the prospective buyer has funds at risk to ensure performance.

Allowance for Doubtful Accounts

The Company makes quarterly estimates of the collectability of its accounts receivable related to base rents, tenant escalations (straight-line rents), reimbursements and other revenue or income. The Company specifically analyzes trends in accounts receivable, historical bad debts, customer creditworthiness, current economic trends and changes in customer payment terms when evaluating the adequacy of its allowance for doubtful accounts. When evaluating customer creditworthiness, management reviews the periodic financial statements for significant tenants and specifically evaluates the strength and material changes in net operating income, coverage ratios, leverage and other factors to assess the tenant's credit quality. In addition, when customers are in bankruptcy, the Company makes estimates of the expected recovery of pre-petition administrative and damage claims. These estimates have a direct impact on the Company's net income.

Revenue Recognition

Rents that are fixed and determinable are recognized on a straight-line basis over the minimum terms of the leases. Base rent escalation on leases that are dependent upon increases in the Consumer Price Index (CPI) is recognized when known. In addition, most of the Company's tenants are subject to additional rents if gross revenues of the properties exceed certain thresholds defined in the lease agreements (percentage rents). Percentage rents as well as participating interest for those mortgage agreements that contain similar such clauses are recognized at the time when specific triggering events occur as provided by the lease or mortgage agreements. Rental revenue included percentage rents of $0.4 million and $0.5 million for the three months ended March 31, 2013 and 2012, respectively. Lease termination fees are recognized when the related leases are canceled and the Company has no obligation to provide services to such former tenants. No termination fees were recognized during the three months ended March 31, 2013 and 2012.

Direct financing lease income is recognized on the effective interest method to produce a level yield on funds not yet recovered. Estimated unguaranteed residual values at the date of lease inception represent management's initial estimates of fair value of the leased assets at the expiration of the lease, not to exceed original cost. Significant assumptions used in estimating residual values include estimated net cash flows over the remaining lease term and expected future real estate values. The Company evaluates on an annual basis (or more frequently if necessary) the collectability of its direct financing lease receivable and unguaranteed residual value to determine whether they are impaired. A direct financing lease receivable is considered to be impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due according to the existing contractual terms. When a direct financing lease receivable is considered to be impaired, the amount of loss is calculated by comparing the recorded investment to the value determined by discounting the expected future cash flows at the direct financing lease receivable's effective interest rate or to the fair value of the underlying collateral, less costs to sell, if such receivable is collateralized.

Mortgage Notes and Other Notes Receivable

Mortgage notes and other notes receivable, including related accrued interest receivable, consist of loans originated by the Company and the related accrued and unpaid interest income as of the balance sheet date. Mortgage notes and other notes receivable are initially recorded at the amount advanced to the borrower and the Company defers certain loan origination and commitment fees, net of certain origination costs, and amortizes them over the term of the related loan. Interest income on performing loans is accrued as earned. The Company evaluates the collectability of both interest and principal of each of its loans to determine whether it is impaired. A loan is considered to be impaired when, based on current information and events, the Company determines that it is probable that it will be unable to collect all amounts due according to the existing contractual terms. An insignificant delay or shortfall in amounts of payments does not necessarily result in the loan being identified as impaired. When a loan is considered to be impaired, the amount of loss, if any, is calculated by comparing the recorded investment to the value determined by discounting the expected future cash flows at the loan’s effective interest rate or to the fair value of the Company’s interest in the underlying collateral, less costs to sell, if the loan is collateral dependent. For impaired loans, interest income is recognized on a cash basis, unless the Company determines based on the loan to estimated fair value ratio the loan should be on the cost recovery method, and any cash payments received would then be reflected as a reduction of principal. Interest income recognition is recommenced if and when the impaired loan becomes contractually current and performance is demonstrated to be resumed.

Concentrations of Risk

American Multi-Cinema, Inc. (AMC) was the lessee of a substantial portion (31%) of the megaplex theatre rental properties held by the Company (including joint venture properties) at March 31, 2013 as a result of a series of sale leaseback transactions pertaining to AMC megaplex theatres. A substantial portion of the Company’s total revenues (approximately $21.6 million or 26% and $25.7 million or 33%, for the three months ended March 31, 2013 and 2012, respectively) result from the revenue from AMC under the leases, or from its parent, AMC Entertainment, Inc. (AMCE), as the guarantor of AMC’s obligations under the leases. On August 30, 2012, Dalian Wanda Group Co., Ltd. (Wanda) announced that it completed its acquisition of AMC Entertainment Holdings, Inc., the parent of AMCE (AMCE Holdings), in a transaction valued at $2.7 billion. Upon completion of the acquisition, AMCE Holdings became a wholly-owned subsidiary of Wanda and transitioned their year-end to a calendar year-end as of December 31, 2012. AMCE publicly reported total assets of $4.3 billion and $3.6 billion and total stockholders' equity of $774.1 million and $154.3 million at December 31, 2012 and March 29, 2012, respectively. Additionally, AMCE publicly reported total liabilities of $3.5 billion at both December 31, 2012 and March 29, 2012. AMCE publicly reported net earnings of $57.3 million for the transition period beginning on March 30, 2012 and ending December 31, 2012, a net loss of $82.0 million for the fifty-two weeks ended March 29, 2012 and a net loss of $122.9 million for the fifty-two weeks ended March 31, 2011. AMCE has publicly held debt and the foregoing financial information was reported in its consolidated financial information which is publicly available.

For the three months ended March 31, 2013 and 2012, approximately $10.7 million or 12.8%, and $10.9 million or 14%, respectively, of total revenue was derived from the Company's four entertainment retail centers in Ontario, Canada. The Company's wholly owned subsidiaries that hold the four Canadian entertainment retail centers and third-party debt represent approximately $144.7 million or 10%, and $147.3 million or 10%, of the Company's net assets as of March 31, 2013 and December 31, 2012, respectively.

Share-Based Compensation

Share-based compensation to employees of the Company is granted pursuant to the Company's Annual Incentive Program and Long-Term Incentive Plan. Share-based compensation to non-employee Trustees of the Company is granted pursuant to the Company's Trustee compensation program and shares are issued under the 2007 Equity Incentive Plan.

Share based compensation expense consists of share option expense, amortization of nonvested share grants, and amortization of share units issued to non-employee Trustees for payment of their annual retainers. Share based compensation is included in general and administrative expense in the accompanying consolidated statements of income, and totaled $1.5 million for both the three months ended March 31, 2013 and 2012.

Share Options

Share options are granted to employees pursuant to the Long-Term Incentive Plan and to non-employee Trustees for their service to the Company. The fair value of share options granted is estimated at the date of grant using the Black-Scholes option pricing model. Share options granted to employees vest over a period of four years and share option expense for these options is recognized on a straight-line basis over the vesting period. Share options granted to non-employee Trustees vest immediately but may not be exercised for a period of one year from the grant date. Share option expense for non-employee Trustees is recognized on a straight-line basis over the year of service by the non-employee Trustees. Total expense recognized related to share options was $222 thousand and $256 thousand for the three months ended March 31, 2013 and 2012, respectively.

Nonvested Shares Issued to Employees

The Company grants nonvested shares to employees pursuant to both the Annual Incentive Program and the Long-Term Incentive Plan. The Company amortizes the expense related to the nonvested shares awarded to employees under the Long-Term Incentive Plan and the premium awarded under the nonvested share alternative of the Annual Incentive Program on a straight-line basis over the future vesting period (three to four years). Total expense recognized related to all nonvested shares was $1.2 million and $1.1 million for the three months ended March 31, 2013 and 2012, respectively.

Restricted Share Units Issued to Non-Employee Trustees

The Company issues restricted share units to non-employee Trustees for payment of their annual retainers. The fair value of the share units granted was based on the share price at the date of grant. The share units vest upon the earlier of the day preceding the next annual meeting of shareholders or a change of control. The settlement date for the shares is selected by the non-employee Trustee, and ranges from one year from the grant date to upon termination of service. This expense is amortized by the Company on a straight-line basis over the year of service by the non-employee Trustees. Total expense recognized related to shares issued to non-employee Trustees was $122 thousand, and $126 thousand for the three months ended March 31, 2013 and 2012, respectively.

Derivative Instruments

The Company has acquired certain derivative instruments to reduce exposure to fluctuations in foreign currency exchange rates and variable interest rates. The Company has established policies and procedures for risk assessment and the approval, reporting and monitoring of derivative financial instrument activities. These derivatives consist of foreign currency forward contracts, cross currency swaps and interest rate swaps.

The Company records all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Derivatives may also be designated as hedges of the foreign currency exposure of a net investment in a foreign operation. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge or the earnings effect of the hedged forecasted transactions in a cash flow hedge. The Company may enter into derivative contracts that are intended to economically hedge certain of its risk, even though hedge accounting does not apply or the Company elects not to apply hedge accounting.

The Company has made an accounting policy election under FASB ASU 2011-04 (Amendments to ASC 820) to use the exception in ASC 820-10-35-18D (commonly referred to as the “portfolio exception”) with respect to measuring counterparty credit risk for derivative instruments, consistent with the guidance in ASC 820-10-35-18G. The Company further documents that it meets the criteria for the exception in ASC 820-10-35-18E.

Reclassifications

Certain reclassifications have been made to the prior period amounts to conform to the current period presentation primarily for asset groups that qualify for presentation as discontinued operations.