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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.

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