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Tenant and Other Receivables, net: (Details) (USD $) In Thousands, unless otherwise specified |  |  |  |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2011 Accrued percentage rents | Dec. 31, 2010 Accrued percentage rents | Dec. 31, 2011 Note receivable secured by deed of trust | Dec. 31, 2010 Note receivable secured by deed of trust | Dec. 31, 2011 Note receivable from Pederson | Dec. 31, 2010 Note receivable from Pederson | Jan. 02, 2008 Unsecured note receivable
Tenant and Other Receivables, net: |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts | $ 4,626 | $ 5,411 |  |  |  |  |  |  |
Components of tenant and other receivables, net |  |  |  |  |  |  |  |  |
Accounts receivable |  |  | 7,583 | 5,827 |  |  |  |  |
Note receivable, interest rate (as a percent) |  |  |  |  | 5.50% |  | 11.55% |  | 9.00%
Notes receivable |  |  |  |  | 8,743 | 8,992 | 3,445 | 3,445 | 11,763
Interest income on notes receivable from J and R Holdings XV, LLC ("Pederson") |  |  |  |  |  |  | $ 413 | $ 138 |

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- Definition For unclassified balance sheet, amounts due from customers or clients for goods or services that have been delivered or sold in the normal course of business. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.9) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition For an unclassified balance sheet, an amount representing an agreement for an unconditional promise by the maker to pay the Company (holder) a definite sum of money at a future date(s). Such amount may include accrued interest receivable in accordance with the terms of the note. The note also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10(3)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 9 -Section 03 -Paragraph 10 -Subparagraph 3 + Details
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