Stock-Based Compensation	9 Months Ended
Stock-Based Compensation	Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	Stock-Based Compensation Stock-based compensation totaled approximately $12.2 million and $31.1 million for the three and nine months ended September 30, 2013, respectively. Stock-based compensation totaled approximately $7.9 million and $20.4 million for the three and nine months ended September 30, 2012, respectively.

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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