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Revenue Recognition - Summary of Balances and Activities Deferred Revenue Accounts (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2021 USD ($)
Deferred Revenue Arrangement [Line Items]
Balance at Beginning of Period	$ 38,212
Balance at End of Period	129,557
CpG 1018
Deferred Revenue Arrangement [Line Items]
Balance at Beginning of Period	38,212
Additions	140,596
Subtractions	(12,199)
Revenue recognized in the current period included in deferred revenue balance at the beginning of the period	(37,052)
Balance at End of Period	129,557
Long-term Deferred Revenue | CpG 1018
Deferred Revenue Arrangement [Line Items]
Additions	109,532
Subtractions	(2,582)
Balance at End of Period	$ 106,950

X

- Definition

Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(5))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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X

- Definition

Amount of deferred revenue recognized for transactions arising during the current reporting period. Deferred revenue is a liability as of the balance sheet date related to a revenue producing activity for which revenue has not yet been recognized. Generally, an Entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of cash outflow to customers for refund payments of revenue that was previously reported as deferred or unearned revenue.

+ References

No definition available.

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X

- Definition

Amount of revenue recognized that was previously reported as deferred or unearned revenue.

+ References

No definition available.

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