COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Future minimum lease payments for all operating leases
2015 (remainder)	$ 3,004		$ 3,004
2016	10,233		10,233
2017	5,890		5,890
2018	5,498		5,498
2019	5,331		5,331
Thereafter	28,521		28,521
Total	58,477		58,477
Operating leases
Rental expense for operating leases	$ 3,100	$ 2,900	$ 9,400	$ 8,700