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Software Development Costs (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Software Development Costs    
Software costs capitalized during the period $ 0.0 $ 0.0
Total capitalized software costs 0.0 1.0
Accumulated software costs amortization 0.0 0.5
Software Development    
Software costs capitalized during the period 3.4 1.5
Property and equipment 1.3 0.8
Long-term assets charged to other assets $ 2.1 $ 0.7