Defined Contribution Plan, Pension and Other Post-Retirement Benefit Plans - Fair Value of Pension Plan Assets Measured Using Significant Unobservable Inputs (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)
Change in plan assets:
Fair value of plan assets at end of the year	$ 79,841
Level 3
Change in plan assets:
Fair value of plan assets — Beginning of the year	4,088
Actual return on assets held at reporting date	0
Purchases, sales and settlements, net	(4,088)
Fair value of plan assets at end of the year	$ 0