Content Production Assets, Net (Schedule Of Content Production Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Film, Monetized on Its Own, Capitalized Cost [Abstract]
In release	$ 7,645	$ 8,735
Completed but not released	2,176	8
In production	6,166	9,978
In development	393	203
Total	16,380	18,924
Film, Monetized in Film Group, Capitalized Cost [Abstract]
In release	525	580
Completed but not released	307	163
In production	283	378
Total	$ 1,115	$ 1,121