Segment Information (Schedule Of Information Of Reportable Segments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013 segment		Mar. 31, 2012		Dec. 31, 2012
Segment Reporting Information [Line Items]
Number of reportable segments	2
Percentage of revenue and income earned in one geographic segment	99.00%
Revenues	$ 273,904		$ 260,607
Income before income taxes	18,957		13,782
Depreciation and amortization	1,352		1,248
Total assets	332,376				331,183
Capital expenditures	968		813
Housekeeping Services [Member]
Segment Reporting Information [Line Items]
Revenues	187,630		181,182
Income before income taxes	18,806		17,456
Dietary Services [Member]
Segment Reporting Information [Line Items]
Revenues	86,274		79,390
Income before income taxes	5,124		4,054
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues	0	[1]	35	[1]
Income before income taxes	$ (4,973)	[1]	$ (7,728)	[1]

[1] Represents primarily corporate office cost and related overhead, recording of transactions at the reportable segment level which use methods other than U.S. GAAP, as well as consolidated subsidiaries’ operating expenses that are not allocated to the reportable segments, net of investment and interest income.