Fair Value Measurements (Details) - USD ($)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Fair Value Disclosures [Abstract]
U.S. Treasury Securities, Held-To-Maturity	May 21, 2020	May 23, 2019
U.S. Treasury Securities, Amortized Cost	$ 351,842,078	$ 344,723,030
U.S. Treasury Securities, Gross Holding Gain (Losses)	(30,765)	(32,510)
U.S. Treasury Securities, Fair Value	$ 351,811,313	$ 344,690,520

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- Definition

Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (c)
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- Definition

Amortized cost of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 320
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=75019621&loc=d3e62586-112803

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- Definition

Fair value of investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
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Date of maturity of investment in debt security measured at amortized cost (held-to-maturity), in CCYY-MM-DD format.

+ References

No definition available.

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