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Discontinued Operations (Tables)
12 Months Ended
Dec. 31, 2016
Discontinued Operations [Abstract]  
Schedule Of Net Service Revenues And Earnings Attributable To Discontinued Operations
    2016   2015   2014
  (Amounts in Thousands)
Net service revenues $ $ $
Income before income taxes   163   448   470
Income tax expense   66   178   190
Net income from discontinued operations   97   270   280