XML 51 R39.htm IDEA: XBRL DOCUMENT v3.8.0.1
Pension And Other Postretirement Benefit Plans Pension And Other Postretirement Benefit Plans (Narrative) (Details)
$ in Millions
6 Months Ended
Sep. 30, 2017
USD ($)
Pension and Other Postretirement Benefits [Line Items]  
Contributions to qualified and non-qualified pension plans $ 7.2
Expected additional contributions in the current fiscal year $ 0.7