Quarterly report pursuant to Section 13 or 15(d)

Equity, Long-Term Incentive Compensation Plans and Non-controlling Interest - Non-controlling Interest (Details)

v3.20.1
Equity, Long-Term Incentive Compensation Plans and Non-controlling Interest - Non-controlling Interest (Details)
Mar. 31, 2020
OLTS
Noncontrolling Interest [Line Items]
Non-controlling interest, ownership 84.00%
Orbograph
Noncontrolling Interest [Line Items]
Non-controlling interest, ownership 94.00%
PixCell
Noncontrolling Interest [Line Items]
Non-controlling interest, ownership 52.00%
Baidu