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Employee Benefit Plan	12 Months Ended
Employee Benefit Plan	Dec. 31, 2018
Employee Benefit Plan [Abstract]
Pension and Other Postretirement Benefits Disclosure	EMPLOYEE BENEFIT PLAN We provide a 401(k) plan for substantially all of our employees. We match 100% of the first 5% of employees’ contributions to the plan. For the years ended December 31, 2018, 2017, and 2016, our contributions to the plan on behalf of the participating employees were $861,000, $604,000, and $444,000, respectively.