Goodwill (Changes in Goodwill) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Line Items]
Goodwill	$ 16,976	$ 17,375	$ 16,908
Goodwill [Roll Forward]
Balance, beginning of year, Goodwill, gross	328,028	327,561
Balance, beginning of year, Accumulated impairment lossses	(310,653)	(310,653)
Effects of foreign currency translation	(399)	467
Total goodwill increase (decrease)	(399)	467
Balance, end of year, Goodwill, Net	16,976	17,375
Consumer Media
Goodwill [Line Items]
Goodwill	580	580
Goodwill [Roll Forward]
Balance, end of year, Goodwill, Net	580	580
Mobile Services
Goodwill [Line Items]
Goodwill	2,111	2,188
Goodwill [Roll Forward]
Balance, end of year, Goodwill, Net	2,111	2,188
Games
Goodwill [Line Items]
Goodwill	14,285	14,607
Goodwill [Roll Forward]
Balance, end of year, Goodwill, Net	$ 14,285	$ 14,607