Investment, Real Estate and Other Assets- Schedule of Investment, Real Estate and Other Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Investment Real Estate And Other Assets [Abstract]
Corporate campus, net	$ 13,117	$ 20,382
Studio building, net	2,524	2,299
Cost method investment	10,000	10,000
Other assets	2,288	1,702
Other intangible assets, net	571	800
Income tax receivable		532
Total investment, real estate and other assets	$ 28,500	$ 35,715