XML 58 R45.htm IDEA: XBRL DOCUMENT v3.7.0.1
Segments - Adjusted EBITDA Calculation by Segment (Parenthetical) (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2016
Segment Reporting [Abstract]    
Severance costs $ 25.1 $ 36.9
Contract termination cost $ 2.1 $ 2.7