XML 146 R131.htm IDEA: XBRL DOCUMENT v3.22.0.1
Operating Segment, Geographic and Significant Customer Information - Additional Information (Detail)
12 Months Ended
Dec. 31, 2021
Segment
Dec. 31, 2020
Dec. 31, 2019
Customer
Segment Reporting Information [Line Items]      
Operating segments | Segment 4    
Number of customer accounted for more than ten percent of consolidated revenue | Customer     0
Consolidated Revenue      
Segment Reporting Information [Line Items]      
Concentration risk, percentage     10.00%
Semiconductor Test | Consolidated Revenue | Customer Concentration Risk      
Segment Reporting Information [Line Items]      
Concentration risk, percentage 19.00% 25.00% 10.00%
Semiconductor Test | Customer 1 | Consolidated Revenue | Revenue from Rights Concentration Risk      
Segment Reporting Information [Line Items]      
Concentration risk, percentage 12.00% 15.00%  
Semiconductor Test | Customer 1 | Consolidated Revenue | Revenue from Rights Concentration Risk | Series of Customer [Member]      
Segment Reporting Information [Line Items]      
Concentration risk, percentage 0.00% 3.00% 11.00%