Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Accrued Liabilities, Current [Abstract]
Employee related costs	$ 88,202	$ 100,729
Participations and residuals	81,033	70,955
Other accrued expenses	69,702	93,234
Total accrued liabilities	$ 238,937	$ 264,918