Accrued Expenses (Schedule Of Accrued Expenses) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Accrued Expenses [Abstract]
Other taxes	$ 2,759	$ 2,971
Restructuring	626	3,671
Professional fees	1,146	1,615
Income taxes	1,954	1,201
Professional services partners fees	120	1,498
Short-term deferred rent	1,428	1,272
Self-insurance health and dental claims	1,931	1,635
Dividends payable	1,132	1,118	1,105
Employee reimbursable expenses	897	575
Other	6,343	9,180
Total accrued expenses	$ 18,336	$ 24,736