BUSINESS REORGANIZATION EXPENSES OTHER ASSOCIATED COSTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	$ 5,828	$ 3,789	$ 5,440
Hudson Americas
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	1,108	94	448
Hudson Asia Pacific
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	669	1,322	989
Hudson Europe
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	2,883	1,407	3,214
Corporate
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	1,168	966	789
Other associated costs
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	1,052	122	418
Other associated costs | Hudson Americas
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	255	0	0
Other associated costs | Hudson Asia Pacific
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	47	40	37
Other associated costs | Hudson Europe
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	733	82	381
Other associated costs | Corporate
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	$ 17	$ 0	$ 0