Description of Business and Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Apr. 01, 2021	Mar. 31, 2021
Debt Instrument [Line Items]
Decrease to the opening balance of accumulated deficit	$ (727,795)		$ (587,116)
Increase to the opening balance of Convertible senior notes	$ 497,072		$ 449,380
Accounting Standards Update 2020-06
Debt Instrument [Line Items]
Decrease to the opening balance of accumulated deficit		$ 54,200
Decrease to the opening balance of additional paid-in capital		100,100
Increase to the opening balance of Convertible senior notes		$ 45,900