Annual report pursuant to Section 13 and 15(d)

Organization and Significant Accounting Policies - Property, Plant and Equipment (Details)

v3.19.1
Organization and Significant Accounting Policies - Property, Plant and Equipment (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2017
Accounting Policies [Abstract]      
Depreciation $ 46.7 $ 45.5 $ 35.0