XML 58 R45.htm IDEA: XBRL DOCUMENT v3.8.0.1
Percentage of Revenue from Significant Customers (Detail) - Customer Concentration Risk - Sales Revenue
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
GE Healthcare      
Revenue, Major Customer [Line Items]      
Revenue from significant customers as a percentage of total revenue 21.00% 29.00% 37.00%
MilliporeSigma      
Revenue, Major Customer [Line Items]      
Revenue from significant customers as a percentage of total revenue 18.00% 28.00% 29.00%