Subsequent events (Details) |
1 Months Ended | ||
|---|---|---|---|
|
Jan. 31, 2020
USD ($)
employee
|
Dec. 31, 2019
USD ($)
|
Jun. 30, 2019
USD ($)
|
|
| Subsequent Event [Line Items] | |||
| Non-marketable equity interest | $ 458,000 | $ 458,000 | |
| Equity method investment | $ 16,397,000 | $ 0 | |
| Synq3 LLC | Subsequent Event | |||
| Subsequent Event [Line Items] | |||
| Equity method investment | $ 4,000,000.0 | ||
| Equity interest percent | 11.00% | ||
| Intellectual Property and Workforce in Exchange for Equity Interest | Subsequent Event | |||
| Subsequent Event [Line Items] | |||
| Employees exchanged for non-marketable equity interest | employee | 59 |