XML 91 R76.htm IDEA: XBRL DOCUMENT v3.10.0.1
Business Segment and Geographic Data Information (Narrative) (Details)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Net Sales Percentage to One Customer | Walmart Inc.      
Net sales to Walmart, percent 14.00% 14.00% 14.00%