Acquisition of MediaMission Holding B.V. - Fair Values of Assets Acquired and Liabilities Assumed (Detail) (MediaMission Holding B.V. [Member], USD $) In Thousands, unless otherwise specified	0 Months Ended
	Dec. 16, 2013	Dec. 16, 2013
MediaMission Holding B.V. [Member]
Assets acquired:
Cash	$ 339	$ 339
Other current assets	923	923
Property and equipment	49	49
Customer relationships	591	591
Goodwill	932
Total assets acquired	2,834	2,834
Liabilities assumed:
Current liabilities	(1,111)	(1,111)
Deferred tax liability	(230)	(230)
Total liabilities assumed	(1,341)	(1,341)
Total purchase price	$ 1,493	$ 1,493