Equity, Long-Term Incentive Compensation Plans and Non-controlling Interest - Non-controlling Interest (Details)	Dec. 31, 2019
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%