Accrued Expenses (Schedule Of Accrued Expenses) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Accrued Expenses [Abstract]
Accrued earnouts	$ 3,667	$ 4,128
Salaries and benefits	8,115	11,910
Real estate and property taxes	7,077	7,644
Other	35,097	37,447
Total accrued expenses	$ 53,956	$ 61,129