ACQUISITIONS (Details 3) $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($)
2015 Acquisitions | NavigationArts | Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	3 years
Amount	$ 1,500
2014 Acquisitions | Netsoft
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 1,700
2014 Acquisitions | Netsoft | Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	10 years
Amount	$ 1,700
2014 Acquisitions | Netsoft | Trade Names
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	0
2014 Acquisitions | Jointech
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 15,312
2014 Acquisitions | Jointech | Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	10 years
Amount	$ 15,000
2014 Acquisitions | Jointech | Trade Names
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	2 years
Amount	$ 312
2014 Acquisitions | GGA
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 16,000
2014 Acquisitions | GGA | Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	10 years
Amount	$ 16,000
2014 Acquisitions | GGA | Trade Names
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	0
2014 Acquisitions | Great Fridays Limited
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 200
2014 Acquisitions | Great Fridays Limited | Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	3 years
Amount	$ 200
2014 Acquisitions | Great Fridays Limited | Trade Names
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 0