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Investments - Summary of Available-for-Sale Investments (Details) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Schedule of Available for Sale Securities [Line Items]
Cost Basis	$ 74,737,000
Fair Value	$ 74,657,000	$ 0
Debt Securities, Available-for-sale, Type [Extensible List]	us-gaap:CorporateDebtSecuritiesMember
Investments - Current
Schedule of Available for Sale Securities [Line Items]
Cost Basis	$ 36,097,000
Gross Unrealized Losses	(16,000)
Fair Value	36,081,000
Investments - Noncurrent
Schedule of Available for Sale Securities [Line Items]
Cost Basis	38,640,000
Gross Unrealized Losses	(64,000)
Fair Value	$ 38,576,000

X

- Definition

Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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