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Related Parties	9 Months Ended
Related Parties	Sep. 30, 2019
Related Party Transactions [Abstract]
Related Parties	Related Parties At September 30, 2019 and December 31, 2018, the Company had no amounts receivable from or payable to related parties. Prior to June 2018, the Company subleased airplane and office space to a firm owned by the then Chairman of the Company. The Company recognized rent reimbursements of less than $0.1 million for each of the three and nine month periods ended September 30, 2018.