Quarterly report pursuant to Section 13 or 15(d)

Debt - Interest Expense (Details)

v3.19.2
Debt - Interest Expense (Details) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Debt Instrument [Line Items]    
Non-cash interest expense $ 0 $ 161
Interest expense, total 0 319
Convertible notes    
Debt Instrument [Line Items]    
Interest expense, debt 0 158
Non-cash interest expense $ 0 $ 161