Goodwill and Intangible Assets - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended									12 Months Ended								1 Months Ended
	Dec. 31, 2012	Sep. 30, 2012		Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Cost of revenues	Dec. 31, 2011 Cost of revenues	Dec. 31, 2010 Cost of revenues	Dec. 31, 2012 Griptonite, Blammo and GameSpy Goodwill	Dec. 31, 2011 Griptonite, Blammo and GameSpy Goodwill	Apr. 30, 2012 Trademarks	Sep. 30, 2011 Griptonite and Blammo Intangible Assets	Dec. 31, 2011 Blammo Titles, Content and Technology	Sep. 30, 2012 GameSpy Intangible Assets
Goodwill And Intangible Assets [Line Items]
Acquired intangible assets																			$ 7,400	$ 300	$ 1,550
Intangible assets estimated useful life																		7 years
Deer Hunter Brand cash consideration																		5,000
License term related to intellectual property associated with Deer Hunter brand																		99 years
Intangible amortization expense cost of revenues													3,783	5,447	4,226
Intangible amortization expense, operating expenses	495	495		495	495	495	330	0	0	1,980	825	205
Goodwill, Acquired during the year										1,031	17,044					1,031	17,044
Number of reporting units										3
Goodwill impairment charge	$ 0	$ 3,613	[1]	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 3,613	$ 0	$ 0

[1] The goodwill impairment charge of $3,613 in the third quarter of 2012 was due to a decline in the estimated fair value of the APAC reporting unit attributable to an accelerated decline in the local feature phone business and the recent restructuring of the Company's operations in the region.