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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Investments - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified			3 Months Ended			9 Months Ended			3 Months Ended	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Mar. 31, 2013 Finland	Jan. 02, 2014 Finland	Sep. 30, 2013 Finland	Sep. 30, 2014 Australia	Sep. 30, 2013 Australia	Dec. 31, 2008 Australia	Jun. 30, 2014 Alma Career Oy Eastern Europe and the Baltics	Sep. 30, 2014 Alma Career Oy Eastern Europe and the Baltics
Investment [Line Items]
Percentage of equity investment				25.00%				50.00%		15.00%
Dividend received from investment in Finland			$ 658						$ 199
Carrying value of the investment	22,690	220			148	536	0			22,154
Additional investments in equity method investee						$ 1,331	$ 1,657			$ 6,500