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Total Revenues from Client Services (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Segment Reporting Information [Line Items]
Revenues	$ 272,681,000	$ 218,929,000	$ 800,396,000	$ 638,826,000
Housekeeping Services
Segment Reporting Information [Line Items]
Revenues	124,049,000	110,620,000	367,599,000	323,082,000
Laundry And Linen Services
Segment Reporting Information [Line Items]
Revenues	60,846,000	52,991,000	179,621,000	154,431,000
Dietary Services
Segment Reporting Information [Line Items]
Revenues	86,528,000	54,784,000	249,735,000	159,556,000
Maintenance Services And Other
Segment Reporting Information [Line Items]
Revenues	$ 1,258,000	$ 534,000	$ 3,441,000	$ 1,757,000

X

- 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=6880815&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

+ Details

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X

- Details

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