Accrued Expenses (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Accrued Expenses [Abstract]
Accrued earnouts	$ 4,496	$ 7,230
Salaries and benefits	12,356	14,253
Real estate and property taxes	8,888	7,899
Other	33,377	34,373
Total accrued expenses	$ 59,117	$ 63,755