Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Accrued Liabilities [Abstract]
Employee related costs	$ 89,753	$ 100,729
Participations and residuals	70,682	70,955
Interest	29,767	30,018
Other accrued expenses	61,012	63,216
Total accrued liabilities	$ 251,214	$ 264,918