December 31, 2013 | ||||||||||||||||
(in millions) | Level 1 | Level 2 | Level 3 | Total | ||||||||||||
Assets at Fair Value: | ||||||||||||||||
Marketable securities: | ||||||||||||||||
U.S. Treasury securities | $ | 18.3 | $ | — | $ | — | $ | 18.3 | ||||||||
Mutual funds | 49.6 | — | — | 49.6 | ||||||||||||
Equity securities | 0.1 | — | — | 0.1 | ||||||||||||
Asset-backed security | — | 0.4 | — | 0.4 | ||||||||||||
Total | 68.0 | 0.4 | — | 68.4 | ||||||||||||
Equity investments | 499.9 | — | — | 499.9 | ||||||||||||
Total Assets at Fair Value | $ | 567.9 | $ | 0.4 | $ | — | $ | 568.3 | ||||||||
Liabilities at Fair Value: | ||||||||||||||||
Contingent consideration | $ | — | $ | — | $ | 15.7 | $ | 15.7 | ||||||||
Total Liabilities at Fair Value | $ | — | $ | — | $ | 15.7 | $ | 15.7 | ||||||||
December 31, 2012 | ||||||||||||||||
(in millions) | Level 1 | Level 2 | Level 3 | Total | ||||||||||||
Assets at Fair Value: | ||||||||||||||||
Marketable securities: | ||||||||||||||||
U.S. Treasury securities | $ | 17.5 | $ | — | $ | — | $ | 17.5 | ||||||||
Mutual funds | 38.7 | — | — | 38.7 | ||||||||||||
Asset-backed securities | — | 0.4 | — | 0.4 | ||||||||||||
Total | 56.2 | 0.4 | — | 56.6 | ||||||||||||
Equity investments | 721.7 | — | — | 721.7 | ||||||||||||
Total Assets at Fair Value | $ | 777.9 | $ | 0.4 | $ | — | $ | 778.3 | ||||||||
Liabilities at Fair Value: | ||||||||||||||||
Interest rate swap contracts | $ | — | $ | 1.0 | $ | — | $ | 1.0 | ||||||||
Contingent consideration | — | — | 12.6 | 12.6 | ||||||||||||
Total Liabilities at Fair Value | $ | — | $ | 1.0 | $ | 12.6 | $ | 13.6 | ||||||||