SEVERANCE, RESTRUCTURING AND RELATED CHARGES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	$ 5,593	$ 0
Restructuring Reserve [Roll Forward]
Restructuring liabilities at December 31, 2014	0
Additions	5,593
Payments	(4,818)
Other	0
Restructuring liabilities at December 31, 2015	775	0
Restructuring and Related Cost, Expected Cost [Abstract]
Estimated severance, restructuring and related charges	6,200
Severance costs	700
Other relocation associated costs	3,900
Additional incentive payment received included in other liabilities	500
General and Administrative Expense [Member]
Restructuring and Related Cost, Expected Cost [Abstract]
Incentive payment received upon signing of lease	1,700
Recognized gain on liability from acceleration of lease term	700
County [Member]
Restructuring and Related Cost, Expected Cost [Abstract]
Additional incentive payment received included in other liabilities	100
City [Member]
Restructuring and Related Cost, Expected Cost [Abstract]
Additional incentive payment received included in other liabilities	400
Contract Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	1,600
Restructuring Reserve [Roll Forward]
Restructuring liabilities at December 31, 2014	0
Additions	1,600
Payments	(1,600)
Other	0
Restructuring liabilities at December 31, 2015	0	0
Severance Costs [Member]
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	651
Restructuring Reserve [Roll Forward]
Restructuring liabilities at December 31, 2014	0
Additions	651
Payments	(539)
Other	0
Restructuring liabilities at December 31, 2015	112	0
Other Associated Costs [Member]
Restructuring Cost and Reserve [Line Items]
Total restructuring costs	3,342
Restructuring Reserve [Roll Forward]
Restructuring liabilities at December 31, 2014	0
Additions	3,342
Payments	(2,679)
Other	0
Restructuring liabilities at December 31, 2015	$ 663	$ 0