BUSINESS REORGANIZATION EXPENSES EMPLOYMENT TERMINATION BENEFITS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	$ 6,721	$ 7,782	$ 720
Hudson Americas
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	1,297	1,007	0
Hudson Asia Pacific
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	989	1,285	0
Hudson Europe
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	3,646	5,131	720
Corporate
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	789	359	0
One-time Termination Benefits
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	4,977	4,383	0
One-time Termination Benefits | Hudson Americas
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	1,319	811	0
One-time Termination Benefits | Hudson Asia Pacific
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	505	674	0
One-time Termination Benefits | Hudson Europe
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	2,363	2,539	0
One-time Termination Benefits | Corporate
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	$ 790	$ 359	$ 0