XML 23 R42.htm IDEA: XBRL DOCUMENT v2.4.0.8
Fair Value Measurements - Schedule of Quantitative Information used in Valuing Level 3 Liabilities (Details) (Discounted Cash Flow, USD $)
In Millions, unless otherwise specified
 6 Months Ended 12 Months Ended
Jun. 30, 2014
Dec. 31, 2013
Contingent Payment Arrangements
    
Quantitative information for Level 3 Fair Value Measurements Liabilities    
Fair value Liabilities $ 55.1 $ 50.2
Contingent Payment Arrangements | Minimum
    
Quantitative information for Level 3 Fair Value Measurements Liabilities    
Growth rate (as a percent) 3.00% 3.00%
Discount rate (as a percent) 13.00% 14.00%
Contingent Payment Arrangements | Maximum
    
Quantitative information for Level 3 Fair Value Measurements Liabilities    
Growth rate (as a percent) 9.00% 11.00%
Discount rate (as a percent) 17.00% 18.00%
Affiliate Equity Repurchase Obligations
    
Quantitative information for Level 3 Fair Value Measurements Liabilities    
Fair value Liabilities $ 24.9 $ 4.0
Growth rate (as a percent)   8.00%
Discount rate (as a percent)   15.00%
Affiliate Equity Repurchase Obligations | Minimum
    
Quantitative information for Level 3 Fair Value Measurements Liabilities    
Growth rate (as a percent) 2.00%  
Discount rate (as a percent) 15.00%  
Affiliate Equity Repurchase Obligations | Maximum
    
Quantitative information for Level 3 Fair Value Measurements Liabilities    
Growth rate (as a percent) 10.00%  
Discount rate (as a percent) 17.00%