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BENEFIT PLANS
12 Months Ended
Dec. 31, 2017
Compensation and Retirement Disclosure [Abstract]  
BENEFIT PLANS
BENEFIT PLANS
 
On August 1, 2011, we initiated a qualified contributory retirement plan (the “Plan”) under Section 401(k) of the IRC, which covers all full-time employees who meet certain eligibility requirements. Voluntary contributions may be made to the Plan by employees. The Plan is a Safe Harbor Plan and requires a mandatory employer contribution. The employer contribution expense for the years ended December 31, 2017, 2016 and 2015 was $0.2 million, $0.3 million, and $0.2 million, respectively.