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Segment Information - Schedule of Information of Reportable Segments (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 USD ($) | Sep. 30, 2016 USD ($) | Sep. 30, 2017 USD ($) segment | Sep. 30, 2016 USD ($)
Segment Reporting [Abstract] |  |  |  |
Number of reportable segments | segment |  |  | 2 |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | $ 491,355 | $ 392,734 | $ 1,366,721 | $ 1,164,097
Income before income taxes | 32,930 | 30,571 | 98,287 | 89,858
Housekeeping |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 247,395 | 239,584 | 733,737 | 716,154
Dietary |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 243,960 | 153,150 | 632,984 | 447,943
Operating Segments | Housekeeping |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Income before income taxes | 26,848 | 23,645 | 71,524 | 68,966
Operating Segments | Dietary |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Income before income taxes | 11,366 | 7,884 | 34,733 | 26,103
Corporate and eliminations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Income before income taxes | $ (5,284) | $ (958) | $ (7,970) | $ (5,211)

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- Definition Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(1)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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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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