Segment Information (Percentage Contribution Of Major Client In Revenue) (Details)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenue, Major Customer [Line Items]
Percentage of revenue and income earned in one geographic segment	99.00%
Percentage of revenue from a major client	7.00%	9.00%	11.00%
Amounts due from major customer	less than 1% of our accounts receivable balance	less than 1% of our accounts receivable balance
Housekeeping Services [Member]
Revenue, Major Customer [Line Items]
Percentage of revenue from a major client	9.00%	11.00%	11.00%
Dietary Services [Member]
Revenue, Major Customer [Line Items]
Percentage of revenue from a major client	3.00%	5.00%	9.00%
Maximum [Member]
Revenue, Major Customer [Line Items]
Percentage of revenue from a major client	7.00%
Percent of accounts receivable represented by major client	1.00%	1.00%