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Impact From Hurricanes	9 Months Ended
Impact From Hurricanes	Sep. 30, 2017
Unusual or Infrequent Items, or Both [Abstract]
Impact From Hurricanes	Impact From Hurricanes During the three months ended September 30, 2017, the Company’s operations in Texas and Florida were impacted by Hurricanes Harvey and Irma. The Company recorded $5.3 million of operating costs within facility operating expense on the condensed consolidated statements of operations for the three and nine months ended September 30, 2017, which include incremental costs related to evacuations, repairs and maintenance, and security.