Income (Loss) in Equity Interests, Net (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Schedule of Equity Method Investments [Line Items]
Income (loss) in equity interests, net	$ 75	$ (119)		$ (822)
Finland
Schedule of Equity Method Investments [Line Items]
Income (loss) in equity interests, net		62		273
Australia
Schedule of Equity Method Investments [Line Items]
Income (loss) in equity interests, net	(93)	(181)	(518)	(1,095)
Alma Career Oy | Eastern Europe and the Baltics
Schedule of Equity Method Investments [Line Items]
Income (loss) in equity interests, net	$ 168		$ 518