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Consolidated Statements of Income (Parenthetical) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Consolidated Statements of Income |  |  |
General and administrative, related party | $ 2,685 | $ 2,083 | $ 1,932
Real estate expenses, related party | $ 600 | $ 600 | $ 550

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- Definition Costs of sales and operating expenses for the period incurred from transactions with related parties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2) -SubTopic 10 -Topic 225 -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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