SEGMENT AND GEOGRAPHIC DATA Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013 segments		Mar. 31, 2012		Dec. 31, 2012
Segment Reporting Information [Line Items]
Number of reportable segments (in segments)	3
Revenue, from external customers	$ 165,678		$ 200,590
Inter-segment revenue	0		0
Total revenue	165,678	[1]	200,590	[1]
Gross margin, from external customer	56,677		73,208
Inter-segment gross margin	0		0
Gross margin	56,677		73,208
Business reorganization expenses (recovery)	1,982		940
EBITDA (loss)	(6,624)	[2]	(2,201)	[2]
Depreciation and amortization	1,648		1,505
Intercompany interest income (expense), net	0		0
Interest income (expense), net	(146)		(161)
Income (loss) before provision for income taxes	(8,418)		(3,867)
Accounts receivable, net	103,023		132,567		107,216
Long-lived assets, net of accumulated depreciation and amortization	20,993	[3]	20,175	[3]
Total assets	182,452		205,777		193,468
Hudson Americas
Segment Reporting Information [Line Items]
Revenue, from external customers	37,223		45,170
Inter-segment revenue	(2)		0
Total revenue	37,221		45,170
Gross margin, from external customer	8,144		11,831
Inter-segment gross margin	(2)		(3)
Gross margin	8,142		11,828
Business reorganization expenses (recovery)	(17)		20
EBITDA (loss)	(947)	[2]	(491)	[2]
Depreciation and amortization	252		319
Intercompany interest income (expense), net	0		0
Interest income (expense), net	(9)		(19)
Income (loss) before provision for income taxes	(1,208)		(829)
Accounts receivable, net	23,442		31,654
Long-lived assets, net of accumulated depreciation and amortization	2,100		2,478
Total assets	28,443		36,997
Hudson Asia Pacific
Segment Reporting Information [Line Items]
Revenue, from external customers	56,201		74,263
Inter-segment revenue	(1)		13
Total revenue	56,200		74,276
Gross margin, from external customer	21,492		29,313
Inter-segment gross margin	(25)		(4)
Gross margin	21,467		29,309
Business reorganization expenses (recovery)	102		67
EBITDA (loss)	(867)	[2]	8	[2]
Depreciation and amortization	830		694
Intercompany interest income (expense), net	(665)		(1,746)
Interest income (expense), net	(42)		(65)
Income (loss) before provision for income taxes	(2,404)		(2,497)
Accounts receivable, net	31,627		45,098
Long-lived assets, net of accumulated depreciation and amortization	12,380		10,389
Total assets	69,140		75,506
Hudson Europe
Segment Reporting Information [Line Items]
Revenue, from external customers	72,254		81,157
Inter-segment revenue	25		18
Total revenue	72,279		81,175
Gross margin, from external customer	27,041		32,064
Inter-segment gross margin	26		7
Gross margin	27,067		32,071
Business reorganization expenses (recovery)	1,871		720
EBITDA (loss)	(3,452)	[2]	(1,087)	[2]
Depreciation and amortization	405		363
Intercompany interest income (expense), net	(106)		(108)
Interest income (expense), net	6		19
Income (loss) before provision for income taxes	(3,957)		(1,539)
Accounts receivable, net	47,954		55,815
Long-lived assets, net of accumulated depreciation and amortization	4,703		4,902
Total assets	75,216		84,660
Corporate
Segment Reporting Information [Line Items]
Revenue, from external customers	0		0
Inter-segment revenue	0		0
Total revenue	0		0
Gross margin, from external customer	0		0
Inter-segment gross margin	0		0
Gross margin	0		0
Business reorganization expenses (recovery)	26		133
EBITDA (loss)	(1,358)	[2]	(631)	[2]
Depreciation and amortization	161		129
Intercompany interest income (expense), net	771		1,854
Interest income (expense), net	(101)		(96)
Income (loss) before provision for income taxes	(849)		998
Accounts receivable, net	0		0
Long-lived assets, net of accumulated depreciation and amortization	1,810		2,406
Total assets	9,653		8,614
Inter-segment elimination
Segment Reporting Information [Line Items]
Revenue, from external customers	0		0
Inter-segment revenue	(22)		(31)
Total revenue	(22)		(31)
Gross margin, from external customer	0		0
Inter-segment gross margin	1		0
Gross margin	1		0
Business reorganization expenses (recovery)	0		0
EBITDA (loss)	0	[2]	0	[2]
Depreciation and amortization	0		0
Intercompany interest income (expense), net	0		0
Interest income (expense), net	0		0
Income (loss) before provision for income taxes	0		0
Accounts receivable, net	0		0
Long-lived assets, net of accumulated depreciation and amortization	0		0
Total assets	$ 0		$ 0

[1] Revenue by geographic region disclosed above is net of any inter-segment revenue and, therefore, represents only revenue from external customers according to the location of the operating subsidiary.

[2] SEC") Regulation S-K 229.10(e)1(ii)(A) defines EBITDA as earnings before interest, taxes, depreciation and amortization. EBITDA is presented to provide additional information to investors about the Company's operations on a basis consistent with the measures that the Company uses to manage its operations and evaluate its performance. Management also uses this measurement to evaluate working capital requirements. EBITDA should not be considered in isolation or as a substitute for operating income and net income prepared in accordance with U.S. GAAP or as a measure of the Company's profitability.

[3] Comprised of property and equipment and intangibles. Corporate assets are included in the United States.