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Employee Benefits	12 Months Ended
Employee Benefits	Dec. 31, 2017
Retirement Benefits [Abstract]
Employee Benefits	EMPLOYEE BENEFITS Prior to 2015, we had a qualifying 401(k) defined contribution plan that covered employees at one of our subsidiaries, The Providence Group of Georgia L.L.C. (“TPG”). During the year ended December 31, 2015, we extended the qualifying 401(k) defined contribution plan to all employees of the Company. Each year, we may make discretionary matching contributions equal to a percentage of the employees’ contributions. The Company contributed $0.5 million of matching contributions to the 401(k) plan during the year ended December 31, 2017. The Company did not contribute any matching contributions to the 401(k) plan during the years ended December 31, 2016 and 2015.