Cash Equivalents and Investments - Tabular Disclosure - Total (Details) - USD ($) $ in Thousands |
Sep. 30, 2020 |
Dec. 31, 2019 |
---|---|---|
Cash Equivalents and Investments | ||
Total, Amortized Cost | $ 1,354,736 | $ 547,454 |
Total, Unrealized Gain | 1,338 | 518 |
Total, Unrealized Losses | (174) | (12) |
Total, Fair Value | $ 1,355,900 | $ 547,960 |