Segment Information (Schedule Of Information Of Reportable Segments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended										12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012		Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Segment Reporting Information [Line Items]
Revenues											$ 1,149,890		$ 1,077,435		$ 889,065
Income before income taxes	6,481		21,193	19,858	18,957	19,625		18,573	18,283	13,783	66,489		70,264		57,812
Depreciation and amortization											6,204		5,116		4,387
Total assets	425,342					331,183					425,342		331,183		289,695
Capital expenditures											3,762		3,484		5,545
Housekeeping Services [Member]
Segment Reporting Information [Line Items]
Revenues											759,093		737,407		654,886
Income before income taxes											68,872		69,429		63,395
Depreciation and amortization											5,105		4,069		3,428
Total assets	213,397					144,412					213,397		144,412		135,223
Capital expenditures											2,726		2,765		4,697
Dietary Services [Member]
Segment Reporting Information [Line Items]
Revenues											390,797		339,855		234,247
Income before income taxes											21,244		18,474		11,678
Depreciation and amortization											693		676		614
Total assets	92,424					62,263					92,424		62,263		57,034
Capital expenditures											460		453		372
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues											0		173	[1]	(68)	[1]
Income before income taxes											(23,627)	[1]	(17,639)	[1]	(17,261)	[1]
Depreciation and amortization											406		371		345
Total assets	119,521	[2]				124,508	[2]				119,521	[2]	124,508	[2]	97,438	[2]
Capital expenditures											$ 576		$ 266		$ 476

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

[2] represents primarily cash and cash equivalents, marketable securities, deferred income taxes and other current and noncurrent assets.