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Fair Value Measurements | 12 Months Ended
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Dec. 31, 2011
Fair Value Measurements [Abstract] |
Fair Value Measurements | Note 6. Fair Value Measurements The carrying amounts of cash and cash equivalents, restricted cash, rents and other receivables, certain other assets, accounts payable and accrued expenses approximate fair value. The fair value of the Company's investments and liabilities related to deferred compensation plans were determined to be a Level 1 within the valuation hierarchy, and were based on independent values provided by financial institutions. The valuation of the liability for the Company's interest rate swaps, which is measured on a recurring basis, was determined to be a Level 2 within the valuation hierarchy, and was based on independent values provided by financial institutions. The valuation of the assets for the Company's real estate held for sale/conveyance – discontinued operations, which is measured on a nonrecurring basis, have been determined to be (i) a Level 2 within the valuation hierarchy, based on the respective contracts of sale or (ii) Level 3 within the valuation hierarchy, where applicable, based on estimated sales prices determined by discounted cash flow analyses if no contract amounts were as yet being negotiated. The discounted cash flow analyses included all estimated cash inflows and outflows over a specific holding period and where applicable, any estimated debt premiums. These cash flows were comprised of unobservable inputs which included contractual rental revenues and forecasted rental revenues and expenses based upon market conditions and expectations for growth. Capitalization rates and discount rates utilized in these analyses were based upon observable rates that the Company believed to be within a reasonable range of current market rates for the respective properties. The following tables show the hierarchy for those assets measured at fair value on a recurring basis as of December 31, 2011 and December 31, 2010, respectively:
| Assets/Liabilities Measured at Fair Value on a Recurring Basis December 31, 2011
Description | Level 1 | Level 2 | Level 3 | Total
Investments | $ | 3,562,000 | $ | - | $ | - | $ | 3,562,000
Liabilities relating to deferred |  |  |  |  |  |  |  |
compensation plans | $ | 3,562,000 | $ | - | $ | - | $ | 3,562,000
Interest rate swaps liability | $ | - | $ | 2,053,000 | $ | - | $ | 2,053,000
| Assets/Liabilities Measured at Fair Value on a Recurring Basis December 31, 2010
Description | Level 1 | Level 2 | Level 3 | Total
Interest rate swaps liability | $ | - | $ | 1,642,000 | $ | - | $ | 1,642,000
The fair value of the Company's fixed rate mortgage loans was estimated using available market information and discounted cash flows analyses based on borrowing rates the Company believes it could obtain with similar terms and maturities. As of December 31, 2011 and December 31, 2010, the aggregate fair values of the Company's fixed rate mortgage loans were approximately $529.0 million and $490.1 million, respectively; the carrying values of such loans were $525.3 million and $488.0 million, respectively, at those dates. The following tables show the hierarchy for those assets measured at fair value on a non-recurring basis as of December 31, 2011 and December 31, 2010, respectively:
| Assets Measured at Fair Value on a Non-Recurring Basis December 31, 2011
Asset Description | Level 1 | Level 2 | Level 3 | Total
Real estate held for sale/conveyance | $ | - | $ | 124,154,000 | $ | 82,520,000 | $ | 206,674,000 |
| Assets Measured at Fair Value on a Non-Recurring Basis December 31, 2010
Asset Description | Level 1 | Level 2 | Level 3 | Total
Real estate held for sale/conveyance | $ | - | $ | 22,773,000 | $ | 47,186,000 | $ | 69,959,000 | (a)
(a) Excludes $278.8 million relating to properties subsequently treated as "held for sale/conveyance" as of December 31, 2011 and recorded at fair value as of that date.

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- Definition Tabular disclosure of the fair value measurement of assets and liabilities which includes [financial] instruments measured at fair value that are classified in stockholders' equity. Such assets and liabilities may be measured on a recurring or nonrecurring basis. The disclosures which may be required or desired include: (1) for assets and liabilities measured on a recurring basis, disclosure may include: (a) the fair value measurements at the reporting date; (b) the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets or liabilities (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3); (c) for fair value measurements using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (i) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (ii) purchases, sales, issuances, and settlements (net); (iii) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs); (d) the amount of the total gains or losses for the period in subparagraph (c) (i) above included in earnings (or changes in net assets) that are attributable to the change in unrealized gains or losses relating to those assets and liabilities still held at the reporting date and a description of where those unrealized gains or losses are reported in the statement of income (or activities); (e) the valuation technique(s) used to measure fair value and a discussion of changes in valuation techniques, if any, during the period and (2) for assets and liabilities that are measured at fair value on a nonrecurring basis (for example, impaired assets) disclosure may include, in addition to (a) above: (a) the reasons for the fair value measurements recorded; (b) the same as (b) above; (c) for fair value measurements using significant unobservable inputs (Level 3), a description of the inputs and the information used to develop the inputs; and (d) the valuation technique(s) used to measure fair value and a discussion of changes, if any, in the valuation technique(s) used to measure similar assets and/or liabilities in prior periods. Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19279-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 33 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 107 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19296-110258 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 6 -Footnote 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19190-110258 + Details
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