Segment Information (Schedule Of Information Of Reportable Segments) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) segment	Sep. 30, 2014 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment			2
Percentage of revenue and income earned in one geographic area			99.00%
Segment Reporting Information [Line Items]
Revenues	$ 360,165	$ 320,099	$ 1,070,767	$ 951,559
Income (loss) before income taxes	26,741	(35,083)	78,052	10,089
Operating Segments | Housekeeping Services
Segment Reporting Information [Line Items]
Revenues	227,760	211,552	681,306	627,650
Income (loss) before income taxes	21,770	15,589	64,139	52,224
Operating Segments | Dietary Services
Segment Reporting Information [Line Items]
Revenues	132,405	108,547	389,461	323,909
Income (loss) before income taxes	8,239	5,648	25,008	18,946
Corporate And Eliminations
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Income (loss) before income taxes	$ (3,268)	$ (56,320)	$ (11,095)	$ (61,081)