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Organization and Summary of Significant Accounting Policies - New Accounting Pronouncements (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2020 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |
Deferred payments of social security tax | $ 15.2
Loss carryback related to the CARES Act [Member] |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |
Other Tax Expense (Benefit) | (14.4)
CARES Act [Member] |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |
Proceeds from Income Tax Refunds | $ 31.0

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