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Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) link:presentationLink link:calculationLink link:definitionLink 1009010 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 2101101 - Disclosure - Organization and Basis of Presentation link:presentationLink link:calculationLink link:definitionLink 2102102 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 2203201 - Disclosure - Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 2404401 - Disclosure - Summary of Significant Accounting Policies (Details) link:presentationLink link:calculationLink link:definitionLink 2105103 - Disclosure - Acquisitions link:presentationLink link:calculationLink link:definitionLink 2306301 - Disclosure - Acquisitions (Tables) link:presentationLink link:calculationLink link:definitionLink 2407402 - 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Concentrations and Geographic Information (Details) link:presentationLink link:calculationLink link:definitionLink 2115106 - Disclosure - Prepaid Expenses and Other Current Assets link:presentationLink link:calculationLink link:definitionLink 2316303 - Disclosure - Prepaid Expenses and Other Current Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 2417407 - Disclosure - Prepaid Expenses and Other Current Assets - Schedule of Prepaid Expenses and Other Current Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2418408 - Disclosure - Prepaid Expenses and Other Current Assets - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2119107 - Disclosure - Real Estate Development link:presentationLink link:calculationLink link:definitionLink 2320304 - Disclosure - Real Estate Development (Tables) link:presentationLink link:calculationLink link:definitionLink 2421409 - Disclosure - Real Estate Development - 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Disclosure - Goodwill and Intangible Assets - Change in Carrying Amount of Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 2430414 - Disclosure - Goodwill and Intangible Assets - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2431415 - Disclosure - Goodwill and Intangible Assets - Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2432416 - Disclosure - Goodwill and Intangible Assets - Estimated Future Amortization Expense of Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2133110 - Disclosure - Other Assets link:presentationLink link:calculationLink link:definitionLink 2434417 - Disclosure - Other Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2135111 - Disclosure - Accrued Liabilities link:presentationLink link:calculationLink link:definitionLink 2336307 - Disclosure - Accrued Liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 2437418 - 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Disclosure - Leases - Future Minimum Lease Payments to be Received by the Company Related to Lessee Operating Lease Arrangements (Details) link:presentationLink link:calculationLink link:definitionLink 2451428 - Disclosure - Leases - Future Minimum Lease Payments to be Received by the Company Related to Lessee Operating Lease Arrangements (Details) link:presentationLink link:calculationLink link:definitionLink 2452429 - Disclosure - Leases - Future Minimum Lease Payments under Non-Cancellable Leases (Details) link:presentationLink link:calculationLink link:definitionLink 2153114 - Disclosure - Basic and Diluted Net Income (Loss) per Share link:presentationLink link:calculationLink link:definitionLink 2354310 - Disclosure - Basic and Diluted Net Income (Loss) per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 2455430 - Disclosure - Basic and Diluted Net Income (Loss) per Share - Schedule of Net (Loss) Income per Share (Details) link:presentationLink link:calculationLink link:definitionLink 2456431 - Disclosure - Basic and Diluted Net Income (Loss) per Share - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2157115 - Disclosure - Related-Party Transactions link:presentationLink link:calculationLink link:definitionLink 2358311 - Disclosure - Related-Party Transactions (Tables) link:presentationLink link:calculationLink link:definitionLink 2459432 - Disclosure - Related-Party Transactions (Details) link:presentationLink link:calculationLink link:definitionLink 2160116 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 2461433 - Disclosure - Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 2162117 - Disclosure - Retirement Plans link:presentationLink link:calculationLink link:definitionLink 2363312 - Disclosure - Retirement Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 2464434 - Disclosure - Retirement Plans - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2465435 - Disclosure - Retirement Plans - Net Benefit Costs (Details) link:presentationLink link:calculationLink link:definitionLink 2166118 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 2167119 - Disclosure - Stock-based Compensation and Treasury Stock link:presentationLink link:calculationLink link:definitionLink 2468436 - Disclosure - Stock-based Compensation and Treasury Stock (Details) link:presentationLink link:calculationLink link:definitionLink 2169120 - Disclosure - Segment Information link:presentationLink link:calculationLink link:definitionLink 2370313 - Disclosure - Segment Information (Tables) link:presentationLink link:calculationLink link:definitionLink 2471437 - Disclosure - Segment Information - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2472438 - Disclosure - Segment Information - Schedule of Segment Information (Details) link:presentationLink link:calculationLink link:definitionLink 2173121 - Disclosure - Subsequent Events link:presentationLink link:calculationLink link:definitionLink