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Segment Information - Schedule of Information of Reportable Segments (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) segment	Jun. 30, 2017 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment			2
Segment Reporting Information [Line Items]
Revenues	$ 503,732	$ 470,876	$ 1,005,542	$ 875,366
Income before income taxes	33,316	33,078	31,921	65,357
Corporate and eliminations
Segment Reporting Information [Line Items]
Income before income taxes	(11,333)	(1,538)	(56,395)	(2,686)
Housekeeping
Segment Reporting Information [Line Items]
Revenues	245,547	242,919	491,956	486,342
Housekeeping | Operating Segments
Segment Reporting Information [Line Items]
Income before income taxes	29,078	21,474	58,015	44,676
Dietary
Segment Reporting Information [Line Items]
Revenues	258,185	227,957	513,586	389,024
Dietary | Operating Segments
Segment Reporting Information [Line Items]
Income before income taxes	$ 15,571	$ 13,142	$ 30,301	$ 23,367

X

- 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
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-Topic 235
-SubTopic 10
-Section S99
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-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
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