Income Taxes - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended			1 Months Ended
	Sep. 30, 2014	Mar. 31, 2014	Sep. 30, 2013	Mar. 31, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2013 JobKorea Ltd.
Income Tax [Line Items]
Federal statutory income tax rate					35.00%
Unrecognized tax benefits due to settlement of tax examination		$ 350				$ 12,979
Impact on effective tax rate		228	12,391			12,391
Reversal of accrued interest related to unrecognized tax benefits		440				3,245
Reversal of accrued interest, impact on effective tax rate		266				1,963
Increase in tax benefit due to discrete items					5,464	14,477
Increase in tax provision due to gain related to deconsolidation of subsidiaries					5,543
Total benefit reflect in tax provision	0				494
Percentage ownership interest sold								49.99%
Percentage ownership interest retained by the company								50.01%
Increase in tax benefit due to reversals of uncertain tax positions and accrued interest			1,486	12,869		14,355
Included tax benefits discontinued operation tax provision						(6,407)
Long-term income taxes payable	56,465				56,465		53,078
Minimum unrecorded tax benefit reduction	0				0
Maximum unrecorded tax benefit reduction	$ 14,000				$ 14,000