XML 57 R44.htm IDEA: XBRL DOCUMENT v3.8.0.1
Fair Value Measurements - Changes in Level 3 Assets and Liabilities (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Contingent Payment Arrangements        
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period $ 7.8 $ 8.0 $ 8.6 $ 10.2
Net realized and unrealized (gains) losses [1] 0.3 0.2 2.3 (2.0)
Purchases and issuances 0.0 0.0 0.0 0.0
Settlements and reductions 0.0 0.0 (2.8) 0.0
Balance, end of period 8.1 8.2 8.1 8.2
Net change in unrealized (gains) losses relating to instruments still held at the reporting date [1] 0.3 0.2 2.3 (2.0)
Affiliate Equity Obligations        
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period 70.7 27.0 12.1 62.3
Net realized and unrealized (gains) losses [1] (0.2) 0.1 (0.2) 0.1
Purchases and issuances 11.1 8.4 161.5 48.2
Settlements and reductions (35.9) (8.8) (127.7) (83.9)
Balance, end of period 45.7 26.7 45.7 26.7
Net change in unrealized (gains) losses relating to instruments still held at the reporting date $ 0.0 $ 0.0 $ 0.0 $ 0.0
[1] Accretion and changes in the expected value of the Company’s contingent payment arrangements are recorded in Imputed interest expense and contingent payment arrangements.