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Related Party Transactions - CF&Co (Details) - Cantor - USD ($)	3 Months Ended
	Sep. 26, 2018	Dec. 31, 2020	Nov. 06, 2018
Related Party Transaction
Fees for services	$ 4,000,000.0
Stated interest rate (in percentage)		0.85%
6.125% Senior Notes
Related Party Transaction
Debt instrument face amount			$ 550,000,000.0
Stated interest rate (in percentage)			6.125%
Debt instrument, fee amount			$ 800,000

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Related Party Transaction Service Fees Paid

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Face (par) amount of debt instrument at time of issuance.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
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Amount of the fee that accompanies borrowing money under the debt instrument.

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Contractual interest rate for funds borrowed, under the debt agreement.

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