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Subsequent Events - Additional Information (Details) - USD ($)		6 Months Ended
	Mar. 17, 2021	Jun. 30, 2021
Supernova Class A Common Stock | Private Placement | PIPE Investors
Subsequent Event [Line Items]
Number of shares committed to purchase in private placement	20,000,000
Purchase price per share	$ 10.00
Aggregate purchase price	$ 200,000,000
Sponsor Support Agreement
Subsequent Event [Line Items]
Vesting period	5 years
Weighted average price of stock	$ 12.00	$ 12.00
Trading days	20 days	20 days
Consecutive trading days	30 days	30 days
Sponsor Support Agreement | Class B Common Stock
Subsequent Event [Line Items]
Sale of stock, percentage of shares of common stock issued	20.00%	20.00%
Merger Agreement | OfferPad, Inc.
Subsequent Event [Line Items]
Aggregate equity consideration	$ 2,250,000,000	$ 2,250,000,000

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- Definition

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- Definition

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- Definition

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- Definition

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- Definition

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- Definition

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 8
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- Definition

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