BUSINESS REORGANIZATION EXPENSES OTHER ASSOCIATED COSTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Business reorganization	$ 1,580	$ 5,828	$ 3,789
Hudson Americas
Restructuring Cost and Reserve [Line Items]
Business reorganization	(39)	1,108	94
Hudson Asia Pacific
Restructuring Cost and Reserve [Line Items]
Business reorganization	248	669	1,322
Hudson Europe
Restructuring Cost and Reserve [Line Items]
Business reorganization	1,387	2,883	1,407
Corporate
Restructuring Cost and Reserve [Line Items]
Business reorganization	(16)	1,168	966
Other associated costs
Restructuring Cost and Reserve [Line Items]
Business reorganization	272	1,052	122
Other associated costs | Hudson Americas
Restructuring Cost and Reserve [Line Items]
Business reorganization	(15)	255	0
Other associated costs | Hudson Asia Pacific
Restructuring Cost and Reserve [Line Items]
Business reorganization	0	47	40
Other associated costs | Hudson Europe
Restructuring Cost and Reserve [Line Items]
Business reorganization	287	733	82
Other associated costs | Corporate
Restructuring Cost and Reserve [Line Items]
Business reorganization	$ 0	$ 17	$ 0