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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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Financial Instruments Measured at Fair Value and Concentrations of Credit Risk - Additional Information (Detail) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Fair Value Concentration Of Risk Financial Statement Captions [Line Items]
Fair value of financing leases		$ 14.5
Corporate Debt Securities [Member]
Fair Value Concentration Of Risk Financial Statement Captions [Line Items]
Other Financial Instruments	$ 0.0