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Total Revenue from Client Services (Detail) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Segment Reporting Information [Line Items]
Revenues	$ 267,108,000	$ 211,507,000	$ 527,715,000	$ 419,897,000
Housekeeping Services
Segment Reporting Information [Line Items]
Revenues	121,897,000	106,715,000	243,550,000	212,463,000
Laundry And Linen Services
Segment Reporting Information [Line Items]
Revenues	60,245,000	51,266,000	118,775,000	101,440,000
Dietary Services
Segment Reporting Information [Line Items]
Revenues	83,816,000	52,922,000	163,206,000	104,772,000
Maintenance Services And Other
Segment Reporting Information [Line Items]
Revenues	$ 1,150,000	$ 604,000	$ 2,184,000	$ 1,222,000

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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