Employee Benefit Plans (Pension Benefit Plan) - Summary of Net Amounts Recognized in Consolidated Balance Sheets for the Unfunded Pension Liability (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Retirement Benefits [Abstract]
Pension liability	$ 11,402	$ 18,664
Total	$ 11,402	$ 18,664

Amount of liability, recognized in statement of financial position, for defined benefit pension plan. Excludes other postretirement benefit plan.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant