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Related Party Transactions	3 Months Ended
Related Party Transactions	Mar. 31, 2019
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions In 2019 and 2018, the Company obtained legal services from Polsinelli PC, a firm for which the spouse of the Company’s Executive Vice President, General Counsel and Secretary is a shareholder. During the three month periods ended March 31, 2019 and 2018, the Company obtained legal services totaling $1.5 million and $0.6 million, respectively, of which $1.0 million and $0.5 million was payable as of March 31, 2019 and 2018, respectively. During the three month periods ended March 31, 2019 and 2018, the Company also obtained and paid legal services totaling $0.1 million and $0.2 million, respectively, to Segal McCambridge Singer & Mahoney, a firm for which the brother-in-law of the Company’s Executive Vice President, General Counsel and Secretary is a shareholder.