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Stock-Based Compensation	3 Months Ended
Stock-Based Compensation	Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	Stock-Based Compensation During the three months ended March 31, 2019, the Company granted 233,237 shares of restricted stock with a weighted-average grant-date fair value of $65.02 per share. The Company records stock-based compensation expense within General and administrative expenses in the accompanying Consolidated Statements of Operations.