Quarterly report pursuant to Section 13 or 15(d)

Cash, cash equivalents and investments - Narrative (Details)

v3.20.2
Cash, cash equivalents and investments - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2019
Cash and Cash Equivalents [Abstract]      
Realized gains (losses) recognized on available-for-sale investments $ (0.2) $ 0.1 $ 0.2