Balance at January 1, 2014 | $ | 31.7 | |
Liabilities incurred | 11.6 | ||
Liabilities paid/settled | (35.7 | ) | |
Balance at December 31, 2014 | $ | 7.6 | |
Liabilities incurred | 21.2 | ||
Liabilities paid/settled | (24.1 | ) | |
Balance at December 31, 2015 | $ | 4.7 | |
Liabilities incurred | 59.4 | ||
Liabilities acquired | 45.5 | ||
Liabilities paid/settled | (19.7 | ) | |
Balance at December 31, 2016 | $ | 89.9 |