ACQUISITIONS (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Netsoft		Sep. 30, 2014 Netsoft		Sep. 30, 2014 Jointech		Sep. 30, 2014 Jointech		Sep. 30, 2014 GGA		Sep. 30, 2014 GGA		Sep. 30, 2014 Total	Sep. 30, 2014 Total	Dec. 31, 2013 Total
Business Acquisition [Line Items]
Revenues	$ 192,764	$ 140,150	$ 527,843	$ 397,532	$ 1,539	[1]	$ 3,173	[1]	$ 5,045	[2]	$ 8,274	[2]	$ 7,989	[3]	$ 10,342	[3]	$ 14,573	$ 21,789	$ 40,500
Net income	19,040	16,437	51,218	43,235	556	[1]	999	[1]	435	[2]	556	[2]	1,406	[3]	1,336	[3]	2,397	2,891
Acquisition related costs					0	[1]	75	[1]	0	[2]	361	[2]	0	[3]	325	[3]	0	761
Stock-based compensation expense					$ 54		$ 124		$ 649		$ 1,089		$ 1,706		$ 2,161

[1] Included in net income is $54 and $124 of stock-based compensation expense related to the Netsoft Employment Shares for the three and nine months ended September 30, 2014.

[2] Included in net income is $649 and $1,089 of stock-based compensation expense related to the Jointech Employment Shares for the three and nine months ended September 30, 2014.

[3] Included in net income is $1,706 and $2,161 of stock-based compensation expense related to the GGA Employment Shares for the three and nine months ended September 30, 2014.