XML 112 R93.htm IDEA: XBRL DOCUMENT v3.4.0.3
Business Segments (Narrative) (Details) - Geographic Concentration Risk
12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Sales | UNITED STATES      
Concentration Risk [Line Items]      
Concentration risk, percentage 87.40% 85.20% 86.90%
Sales | CANADA      
Concentration Risk [Line Items]      
Concentration risk, percentage 5.20% 5.90% 7.70%
Sales | AUSTRALIA      
Concentration Risk [Line Items]      
Concentration risk, percentage 5.60% 6.90% 3.00%
Goodwill and Intangible Assets | UNITED STATES      
Concentration Risk [Line Items]      
Concentration risk, percentage 95.90% 95.60%  
Goodwill and Intangible Assets | AUSTRALIA      
Concentration Risk [Line Items]      
Concentration risk, percentage 4.10% 4.40%