Accrued Expenses (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Accrued Expenses [Abstract]
Accrued earnouts	$ 8,819	$ 15,086
Salaries and benefits	13,202	13,440
Real estate and property taxes	9,700	5,331
Other	33,921	31,696
Total accrued expenses	$ 65,642	$ 65,553