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Share-Based Payments	9 Months Ended
Share-Based Payments	Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Payments	Share-Based Payments During the nine months ended September 30, 2017, the Company granted 168,748 stock options with an exercise price equal to the last reported stock price of our Common Stock on the New York Stock Exchange on the last trading day prior to the date of grant. The fair value of each option is estimated on the date of grant using the Black-Scholes option pricing model, which resulted in a weighted average grant date fair value per share of $6.72. During the nine months ended September 30, 2017, the Company also granted 61,404 shares of time-based restricted stock and 49,344 shares of total return-based restricted stock with weighted average grant date fair values per share of $52.49 and $49.59, respectively. We recorded share-based compensation expense of $0.9 million during each of the three months ended September 30, 2017 and 2016 and $5.8 million and $5.4 million during the nine months ended September 30, 2017 and 2016, respectively. At September 30, 2017, there was $6.1 million of total unrecognized share-based compensation costs, which will be recognized over a weighted average remaining contractual term of 2.3 years.