Segment Information - Schedule of Information of Reportable Segments (Details) $ in Thousands	3 Months Ended
Mar. 31, 2017 USD ($) segment	Mar. 31, 2016 USD ($)
Segment Reporting [Abstract]
Number of reportable segments \| segment	2
Segment Reporting Information [Line Items]
Revenues	$ 404,490	$ 384,807
Income before income taxes	32,279	29,604
Housekeeping Services
Segment Reporting Information [Line Items]
Revenues	243,423	238,279
Dietary Services
Segment Reporting Information [Line Items]
Revenues	161,067	146,528
Operating Segments \| Housekeeping Services
Segment Reporting Information [Line Items]
Income before income taxes	23,202	22,500
Operating Segments \| Dietary Services
Segment Reporting Information [Line Items]
Income before income taxes	10,225	9,148
Corporate and eliminations
Segment Reporting Information [Line Items]
Income before income taxes	$ (1,148)	$ (2,044)

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.

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

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

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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

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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