Share-Based Payments	3 Months Ended
Share-Based Payments	Mar. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Payments	Share-Based Payments During the three months ended March 31, 2014, the Company granted 166,081 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 $6.89. During the three months ended March 31, 2014, the Company also granted 79,056 shares of time-based restricted stock and 65,770 shares of total return-based restricted stock with weighted average grant date fair values per share of $37.55 and $35.24, respectively. We recorded share-based compensation expense of $4.3 million and $3.4 million during the three months ended March 31, 2014 and 2013, respectively. At March 31, 2014, there was $6.2 million of total unrecognized share-based compensation costs, which will be recognized over a weighted average remaining contractual term of 2.7 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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