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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

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
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
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-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
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