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Fair Value Measurements - Quantitative Information about Level 3 Fair Value Measurements (Details)	Jun. 30, 2021 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Valuation Adjustment For Level Three Asset and Liability	$ 5,200,000
Auction rate securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Valuation Adjustment For Level Three Asset and Liability	5,100,000
Auction Rate Securities Purchase Commitment
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Valuation Adjustment For Level Three Asset and Liability	$ 66,000

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- Definition

Auction Rate Securities Valuation Adjustment

+ References

No definition available.

+ Details

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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.

+ Details

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X

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

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Data Type:	na
Balance Type:
Period Type: