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Company and Summary of Significant Accounting Policies - Cash and Cash Equivalents (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Cash, FDIC Insured Amount	$ 250,000
Cash, Uninsured Amount	$ 73,900,000	$ 31,400,000

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- Definition

The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation.

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- Definition

The amount of cash as of the balance sheet date that is not insured by the Federal Deposit Insurance Corporation.

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No definition available.

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