COMMITMENTS AND CONTINGENCIES (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Commitments and Contingencies Disclosure [Abstract]
Operating Leases, Rent Expense	$ 2,000,000	$ 1,800,000	$ 3,900,000	$ 3,600,000
Long-term Purchase Commitment, Amount	15,800,000		15,800,000
future minimum payments due [Line Items]
Operating Leases, 2014 (nine months)	4,487,000		4,487,000
Capital Leases, 2014 (nine months)	246,000		246,000
Total, 2014	4,733,000		4,733,000
Operating Leases, 2015	7,853,000		7,853,000
Capital Leases, 2015	418,000		418,000
Total, 2015	8,271,000		8,271,000
Operating Leases, 2016	6,255,000		6,255,000
Capital Leases, 2016	122,000		122,000
Total, 2016	6,377,000		6,377,000
Operating Leases, 2017	5,225,000		5,225,000
Capital Leases, 2017	62,000		62,000
Total, 2017	5,287,000		5,287,000
Operating Leases, 2018	3,592,000		3,592,000
Capital Leases, 2018	11,000		11,000
Total, 2018	3,603,000		3,603,000
Operating Leases, 2019 and thereafter	3,484,000		3,484,000
Capital Leases, 2019 and thereafter	0		0
Total, 2019 and thereafter	3,484,000		3,484,000
Operating Leases, Total	30,896,000		30,896,000
Capital Leases, Total	859,000		859,000
Total	$ 31,755,000		$ 31,755,000
Minimum
future minimum payments due [Line Items]
capital lease interest rate	3.00%		3.00%
Maximum
future minimum payments due [Line Items]
capital lease interest rate	7.00%		7.00%