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Segment Information - Revenues by Client Services (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Revenue from External Customer [Line Items] |  |  |  |
Revenues | $ 386,556 | $ 355,356 | $ 771,363 | $ 710,602
Housekeeping Services |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 169,362 | 157,086 | 338,278 | 313,673
Dietary Services |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 148,265 | 128,391 | 294,793 | 257,056
Laundry and Linen Services |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 68,452 | 69,339 | 137,166 | 138,827
Maintenance Services and Other |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | $ 477 | $ 540 | $ 1,126 | $ 1,046

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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=63488584&loc=d3e20235-122688 + Details
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