Goodwill - Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Goodwill [Roll Forward]
Balance at beginning of the period	$ 43,371	$ 43,672
Adjustments to goodwill for foreign currency translation	0	(301)
Balance at ending of the period	43,371	43,371
Accumulated impairment losses	(8,288)	(8,288)	$ (8,288)
Goodwill	35,083	35,083	35,384
U.S. and Canada
Goodwill [Roll Forward]
Balance at beginning of the period	29,654	29,857
Adjustments to goodwill for foreign currency translation	0	(203)
Balance at ending of the period	29,654	29,654
Accumulated impairment losses	(6,053)	(6,053)	(6,053)
Goodwill	23,601	23,601	23,804
International
Goodwill [Roll Forward]
Balance at beginning of the period	11,482	11,580
Adjustments to goodwill for foreign currency translation	0	(98)
Balance at ending of the period	11,482	11,482
Accumulated impairment losses	0	0	0
Goodwill	11,482	11,482	11,580
Halloween
Goodwill [Roll Forward]
Balance at beginning of the period	2,235	2,235
Adjustments to goodwill for foreign currency translation	0	0
Balance at ending of the period	2,235	2,235
Accumulated impairment losses	(2,235)	(2,235)	(2,235)
Goodwill	$ 0	$ 0	$ 0