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Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.

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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.

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Related Party Transactions - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Spectrum Inc.
Related Party Transaction [Line Items]
Spectrum Acquisition, tax preparation and other fees		$ 0.2
Principal Owner
Related Party Transaction [Line Items]
Accrued refunds current	$ 1.7
Spectrum Acquisition, tax preparation and other fees	$ 0.7
Principal Owner \| Minimum \| Spectrum Inc.
Related Party Transaction [Line Items]
Non controlling ownership interest minimum	5.00%
Principal Owner \| Maximum \| Spectrum Inc.
Related Party Transaction [Line Items]
Non controlling ownership interest minimum	5.00%
Director
Related Party Transaction [Line Items]
Accrued expenses related to director service			$ 0.2