Equity Based Compensation	3 Months Ended
Equity Based Compensation	Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Equity Based Compensation	Equity Based Compensation Equity compensation expense was $4.5 million and $4.3 million in the first quarter of 2015 and 2014, respectively. In the first quarter of 2015, the Company granted 0.3 million stock appreciation rights at $90.06 weighted average exercise price per share and 0.2 million performance contingent units to employees. Additionally, non-employee directors were granted a total of 15,174 shares of common stock. As of March 31, 2015, 1.9 million share options at $53.08 weighted average per share were vested and exercisable with a remaining weighted average exercise period of 5.1 years. As of March 31, 2015, the total compensation cost of non-vested awards not yet recognized in the condensed consolidated financial statements was $43.0 million. It is estimated that these costs will vest over a weighted average period of 2.3 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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