Equity and Warrants - Common Shares Outstanding and Common Stock Equivalents (Details) - $ / shares	Sep. 16, 2021	Dec. 31, 2021	Sep. 15, 2021	Dec. 31, 2020	Jul. 30, 2020
Class of Stock [Line Items]
Issued and outstanding common shares		95,911,597		75,519,151
Earnout common shares (Note 1 and Note 9)		2,050,000		6,150,000
Total common shares issued and outstanding		97,961,597		81,669,151
Common shares reserved for future issuance:
Total shares of common stock outstanding and reserved for future issuance		132,421,836		116,128,488
Conversion price (per unit)	$ 37.74		$ 25
Potentially dilutive shares	11,261,261
Convertible senior notes, due 2026
Common shares reserved for future issuance:
Total shares of common stock outstanding and reserved for future issuance		16,998,130
Conversion price (per unit)		$ 25.0027
Restricted stock units
Common shares reserved for future issuance:
Total shares of common stock outstanding and reserved for future issuance		2,717,154		2,581,902
Merger Agreement
Class of Stock [Line Items]
Total common shares issued and outstanding					17,249,600
2020 Equity Plan
Common shares reserved for future issuance:
Total shares of common stock outstanding and reserved for future issuance		8,126,263		11,137,824
Employee awards | Common stock options outstanding
Common shares reserved for future issuance:
Total shares of common stock outstanding and reserved for future issuance		4,822,992		6,414,611
Public Warrants
Common shares reserved for future issuance:
Total shares of common stock outstanding and reserved for future issuance				8,625,000
Private Warrants
Common shares reserved for future issuance:
Total shares of common stock outstanding and reserved for future issuance		1,795,700		5,700,000