COMMITMENTS AND CONTINGENCIES - Future Minimum Lease Payments (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Lease Payments
Nine months ending September 30, 2017	$ 2,230
2018	2,484
2019	1,814
2020	1,618
2021	1,308
Thereafter	2,322
Total	11,776
Less, Sublease Income
Nine months ending September 30, 2017	48
2018	0
2019	0
2020	0
2021	0
Thereafter	0
Total	48
Net
Nine months ending September 30, 2017	2,182
2018	2,484
2019	1,814
2020	1,618
2021	1,308
Thereafter	2,322
Total	$ 11,728