Segment Information - Narrative (Details) $ in Millions |
6 Months Ended | ||
---|---|---|---|
Jan. 23, 2017
USD ($)
director
|
Jun. 30, 2018
USD ($)
|
Jan. 22, 2017 |
|
GBAM Fund | |||
Segment Reporting Information [Line Items] | |||
Investment amount | $ | $ 3.0 | ||
NXSN Acquisition Corp | |||
Segment Reporting Information [Line Items] | |||
Noncontrolling interest, percentage held by parent | 50.00% | 100.00% | |
Senior secured convertible promissory note | $ | $ 25.0 | ||
Noncontrolling interest, percentage held by noncontrolling owners | 50.00% | ||
Number of board directors designated to company | director | 2 | ||
Number of board directors | director | 5 |