ACQUISITIONS (NARRATIVE) (DETAILS) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Jun. 30, 2014 WebMetro [Member]	Aug. 09, 2013 WebMetro [Member]	Sep. 30, 2014 Sofica [Member]	Jan. 28, 2014 Sofica [Member]	Sep. 30, 2014 rogenSi [Member]	Aug. 08, 2014 rogenSi [Member]
Business Acquisition [Line Items]
Percentage of Voting Interests Acquired							100.00%		100.00%
Business Acquisition, Purchase Price Allocation, Assets Acquired (Liabilities Assumed), Net							$ 17,800,000		$ 14,172,000		$ 33,757,000
Cost of Acquired Entity, Up Front Cash Consideration							15,300,000		9,400,000		17,500,000
Future Value of Liabilities Incurred From Business Acquisition	13,400,000		13,400,000						4,000,000		15,300,000
Valuation Technique on Contingent Consideration			The Company recorded contingent consideration related to the acquisitions of iKnowtion, Guidon, TSG, WebMetro, Sofica and rogenSi. These contingent payables were recognized at fair value using a discounted cash flow approach and a discount rate of 21.0%, 21.0%, 4.6%, 5.3%, 5.0% or 4.6%, respectively. The discount rates vary dependant on the specific risks of each acquisition including the country of operation, the nature of services and complexity of the acquired business, and other factors. These measurements were based on significant inputs not observable in the market.
Contingent Consideration, at fair value	27,302,000		27,302,000		21,748,000		2,500,000	5,700,000	3,800,000		14,500,000
Contingent Consideration, at Fair Value, Current Portion								2,800,000		5,800,000
Contingent Consideration, at Fair Value, Noncurrent Portion								2,900,000		8,700,000
Revenue of Acquirees since Acquisition Date, Actual	11,100,000	2,500,000	23,900,000	2,500,000
Income (loss) from operations of Acquirees since Acquisition Date, Actual	1,000,000	400,000	1,900,000	400,000
Business Combination Pro Forma Information Amortization Expense of Acquirees Since Acquisition	800,000	300,000	2,100,000	300,000
Purchase Price Payable Payments During Period	(9,144,000)		(9,144,000)			1,000,000
Hold back payment									$ 1,000,000		$ 1,800,000