Stock-Based Compensation and Stock Awards	6 Months Ended
Stock-Based Compensation and Stock Awards	Jun. 30, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation and Stock Awards	4. Stock-Based Compensation and Stock Awards During the three months ended June 30, 2014 and 2013, the Company recognized approximately $2.8 million and $2.0 million, respectively, of stock-based compensation expense, which is included in the selling, general and administrative expense line on the Condensed Statement of Income. For the six months ended June 30, 2014 and 2013, stock-based compensation expense totaled $5.7 million and $4.1 million, respectively. No stock-based compensation expense was capitalized during the three or six months ended June 30, 2014 or 2013. There were no stock options or awards granted in the second quarter of 2014 or 2013. In May 2014, 1,602 shares of restricted stock awards vested from a May 2012 grant to the directors.

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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