DIVESTITURES (Details) - USD ($)			3 Months Ended		6 Months Ended
	Jun. 15, 2015	May. 07, 2015	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pre-tax Gain (loss)			$ 17,000	$ 364,000	$ 373,000	$ 705,000
Gain on sale of businesses					21,373,000	0
Foreign currency translation gains			11,914,000		11,914,000		$ 13,485,000
Hudson Information Technology (US) Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture of businesses	$ 16,977,000
Pre-tax Gain (loss)			(266,000)	705,000	(7,000)	1,178,000
Pre-tax gain on sale and exit of businesses	15,938,000
Income tax on gain from sale of business	$ 11,000
Netherlands Business Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture of businesses		$ 9,029,000
Income tax on gain from sale of business		0
Proceeds From Divestiture of Business, Cash Retained		1,135,000
Gain on sale of businesses		2,881,000
Netherlands Business Sale | Foreign Currency Gain (Loss)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of businesses		$ (2,759,000)
Reclassification out of Accumulated Other Comprehensive Income | Netherlands Business Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Foreign currency translation gains			(299,000)	$ 0	(299,000)	$ 0
Reclassification out of Accumulated Other Comprehensive Income | Exit of Business in Central and Eastern Europe
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Foreign currency translation gains			$ 1,186,000		$ 1,186,000