XML 113 R98.htm IDEA: XBRL DOCUMENT v3.6.0.2
Other Information (Details) - USD ($)
$ in Millions
Dec. 31, 2016
Dec. 31, 2015
Other Information    
Accrued interest $ 34.2 $ 23.2
Accrued wages and benefits, including taxes 19.0 27.7
Accrued ad valorem taxes 23.5 27.0
Capital expenditure accruals 64.6 22.3
Onerous performance obligations 15.9 17.0
Other 60.3 57.6
Other current liabilities $ 217.5 $ 174.8