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Segment Information - Schedule of Information of Reportable Segments (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 USD ($) | Sep. 30, 2017 USD ($) | Sep. 30, 2018 USD ($) segment | Sep. 30, 2017 USD ($)
Segment Reporting [Abstract] |  |  |  |
Number of reportable segments | segment |  |  | 2 |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | $ 506,871 | $ 491,355 | $ 1,512,413 | $ 1,366,721
Income before income taxes | 32,982 | 32,930 | 64,903 | 98,287
Corporate and eliminations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Income before income taxes | (10,503) | (5,284) | (66,898) | (7,970)
Housekeeping |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 242,208 | 247,395 | 734,164 | 733,737
Housekeeping | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Income before income taxes | 27,206 | 26,848 | 85,221 | 71,524
Dietary |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 264,663 | 243,960 | 778,249 | 632,984
Dietary | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Income before income taxes | $ 16,279 | $ 11,366 | $ 46,580 | $ 34,733

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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://fasb.org/us-gaap/role/ref/legacyRef -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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