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Statement - Consolidated Statements of Cash Flows link:calculationLink link:presentationLink link:definitionLink 1011 - Statement - Consolidated Statements of Cash Flows (Parenthetical) link:calculationLink link:presentationLink link:definitionLink 1012 - Disclosure - Summary of Significant Accounting Policies link:calculationLink link:presentationLink link:definitionLink 1013 - Disclosure - Income Properties link:calculationLink link:presentationLink link:definitionLink 1014 - Disclosure - Discontinued Operations link:calculationLink link:presentationLink link:definitionLink 1015 - Disclosure - Commercial Loan Investments link:calculationLink link:presentationLink link:definitionLink 1016 - Disclosure - Land and Subsurface Interests link:calculationLink link:presentationLink link:definitionLink 1017 - Disclosure - Investment Securities link:calculationLink link:presentationLink link:definitionLink 1018 - Disclosure - Fair Value of Financial Instruments link:calculationLink link:presentationLink link:definitionLink 1019 - 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Disclosure - Discontinued Operations - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1056 - Disclosure - Discontinued Operations - Summary of Income from Discontinued Operations (Detail) link:calculationLink link:presentationLink link:definitionLink 1057 - Disclosure - Commercial Loan Investments - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1058 - Disclosure - Commercial Loan Investments - Summary of Commercial Loan Investment Portfolio (Detail) link:calculationLink link:presentationLink link:definitionLink 1059 - Disclosure - Commercial Loan Investments - Carrying Value of Commercial Loan Investment (Detail) link:calculationLink link:presentationLink link:definitionLink 1060 - Disclosure - Land and Subsurface Interests - Summary of Land and Development Costs (Detail) link:calculationLink link:presentationLink link:definitionLink 1061 - Disclosure - Land and Subsurface Interests - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1062 - Disclosure - Investment Securities - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1063 - Disclosure - Investment Securities - Summary of Available for Sale Securities (Detail) link:calculationLink link:presentationLink link:definitionLink 1064 - Disclosure - Investment Securities - Summary of Sale of Investment Securities and Losses (Detail) link:calculationLink link:presentationLink link:definitionLink 1065 - Disclosure - Fair Value of Financial Instruments - Summary of Carrying Value and Estimated Fair Value of Financial Instruments (Detail) link:calculationLink link:presentationLink link:definitionLink 1066 - Disclosure - Intangible Assets - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1067 - Disclosure - Intangible Assets - Summary of Estimated Amortization Expense (Detail) link:calculationLink link:presentationLink link:definitionLink 1068 - Disclosure - Impairment of Long-Lived Assets - 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Disclosure - Pension Plan - Schedule of Changes in Fair Value of Plan Assets (Detail) link:calculationLink link:presentationLink link:definitionLink 1083 - Disclosure - Pension Plan - Schedule of Funded Status of the Pension Obligation (Detail) link:calculationLink link:presentationLink link:definitionLink 1084 - Disclosure - Pension Plan - Schedule of Projected Benefit Obligation and Fair Value of Plan Assets (Detail) link:calculationLink link:presentationLink link:definitionLink 1085 - Disclosure - Pension Plan - Schedule of Disbursements from Plan Assets (Detail) link:calculationLink link:presentationLink link:definitionLink 1086 - Disclosure - Pension Plan - Schedule of Plan's Weighted Average Asset Allocations (Detail) link:calculationLink link:presentationLink link:definitionLink 1087 - Disclosure - Pension Plan - Schedule of Fair Values of Plan Assets and Fair Value Measurements (Detail) link:calculationLink link:presentationLink link:definitionLink 1088 - Disclosure - Post-Retirement Benefit Plans Other than Pensions - 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Summary of Share Option Activity of Stock Option and Stock Appreciation Rights Under 2001 Plan (Detail) link:calculationLink link:presentationLink link:definitionLink 1095 - Disclosure - Stock-Based Compensation - Summary of Non-Vested Options for Liability-Classified Stock Options and Stock Appreciation Rights (Detail) link:calculationLink link:presentationLink link:definitionLink 1096 - Disclosure - Stock-Based Compensation - Assumptions Used in Determining Fair Value of Stock Options and Stock Appreciation Rights (Detail) link:calculationLink link:presentationLink link:definitionLink 1097 - Disclosure - Stock-Based Compensation - Recognized Financial Statements for Stock Options, Stock Appreciation Rights, and Restricted Stock (Detail) link:calculationLink link:presentationLink link:definitionLink 1098 - Disclosure - Income Taxes - Summary of Provisions for Income Tax Benefit (Expense) (Detail) link:calculationLink link:presentationLink link:definitionLink 1099 - Disclosure - Income Taxes - 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Business Segment Data - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 1106 - Disclosure - Business Segment Data - Summary of Operations in Different Segments (Detail) link:calculationLink link:presentationLink link:definitionLink 1107 - Disclosure - Schedule III - Real Estate and Accumulated Depreciation (Detail) link:calculationLink link:presentationLink link:definitionLink 1108 - Disclosure - Schedule III - Real Estate and Accumulated Depreciation (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 1109 - Disclosure - Schedule IV - Mortgage Loans on Real Estate (Detail) link:calculationLink link:presentationLink link:definitionLink