Pensions and Post-Retirement Benefit Plans - Additional Information (Detail)	Jun. 30, 2021 Plan
Defined Benefit Plan Disclosure [Line Items]
Number of domestic non-qualified defined benefit plans	3
Salaried and Hourly Employees [Member]
Defined Benefit Plan Disclosure [Line Items]
Number of domestic non-qualified defined benefit plans	2

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.

No definition available.

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