Share-Based Payments	3 Months Ended
Share-Based Payments	Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Payments	Share-Based Payments During the three months ended March 31, 2015, the Company granted 197,408 stock options with an exercise price equal to the closing market price of a share of Common Stock on 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 $6.19. During the three months ended March 31, 2015, the Company also granted 66,845 shares of time-based restricted stock and 56,726 shares of total return-based restricted stock with weighted average grant date fair values per share of $45.89 and $43.79, respectively. We recorded share-based compensation expense of $3.9 million and $4.3 million during the three months ended March 31, 2015 and 2014, respectively. At March 31, 2015, there was $7.7 million of total unrecognized share-based compensation costs, which will be recognized over a weighted average remaining contractual term of 2.8 years.

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

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