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Warrants (Details) $ / shares in Units, $ in Thousands	1 Months Ended				12 Months Ended
	Mar. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Mar. 31, 2019 USD ($) $ / shares shares	Mar. 31, 2018 award shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($) $ / shares	Dec. 31, 2019 USD ($)	Jul. 02, 2021 $ / shares shares
Class of Warrant or Right [Line Items]
Number of warrant awards | award				5
Proceeds from warrants exercised | $					$ 10,172	$ 0	$ 0
Series D
Class of Warrant or Right [Line Items]
Warrants exercised during period (in shares)	421,039		421,039
Exercise price of warrants (in dollars per share) | $ / shares			$ 3.562605
Proceeds from warrants exercised | $			$ 1,500
Series D | Maximum
Class of Warrant or Right [Line Items]
Number shares warrants can purchase (in shares)				2,111,997
Series D-1
Class of Warrant or Right [Line Items]
Number shares warrants can purchase (in shares)	1,269,919			4,317,725
Warrants exercised during period (in shares)	1,654,276	548,032
Exercise price of warrants (in dollars per share) | $ / shares	$ 3.937257	$ 3.937257				$ 3.937257
Proceeds from warrants exercised | $	$ 8,000	$ 2,200
Series G Preferred Stock
Class of Warrant or Right [Line Items]
Number shares warrants can purchase (in shares)					598,431			598,431
Exercise price of warrants (in dollars per share) | $ / shares								$ 13.827822
Expiration period					10 years

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Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644

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The cash inflow associated with the amount received from holders exercising their stock warrants.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585

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