XML 75 R90.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Segment Information - Narrative (Details) - segment
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Segment Reporting Information [Line Items]      
Number of reportable segments 7    
Percentage of consolidated revenues not exceeded by any single customer 5.00% 5.00% 5.00%
Non-US      
Segment Reporting Information [Line Items]      
Percentage of long-lived asset owned   10.00%  
Geographic Concentration Risk | Revenue | China      
Segment Reporting Information [Line Items]      
Concentration risk percentage 11.00%