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Segment Information (Revenues By Client Services) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Revenue from External Customer [Line Items] |  |  |  |
Revenues | $ 320,099 | $ 298,549 | $ 951,559 | $ 846,057
Housekeeping Services [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 147,812 | 132,340 | 437,358 | 381,284
Laundry and Linen Services [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 63,241 | 60,480 | 188,766 | 180,782
Dietary Services [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 108,547 | 105,023 | 323,909 | 281,147
Maintenance Services and Other [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | $ 499 | $ 706 | $ 1,526 | $ 2,844

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- Definition Aggregate revenue during the period from services rendered in the normal course of business, after deducting allowances and discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(d)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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