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General (Details)	3 Months Ended
	Mar. 31, 2021 USD ($) numberOfVIEs	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)
Basis of Presentation and Significant Accounting Policies [Abstract]
Number of variable interest entities with directed activities | numberOfVIEs	2
Intangible assets, net	$ 38,000.0
Amortization of intangible assets	38,000.0	$ 59,000.0
Goodwill	$ 3,200,000		$ 3,200,000

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Basis of Presentation and Significant Accounting Policies [Abstract]

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Number of Variable Interest Entities with Directed Activities

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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