Employee Benefit Plans - Summary of Fair Value of Plan Assets, Accumulated Benefit Obligation and Projected Benefit Obligation (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 710,592	$ 642,837
Accumulated benefit obligation	744,705	655,015
Projected benefit obligation	744,705	655,015
Unites States [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	22,914	20,813
Accumulated benefit obligation	32,314	28,869
Projected benefit obligation	32,314	28,869
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	687,678	622,024
Accumulated benefit obligation	712,391	626,146
Projected benefit obligation	$ 712,391	$ 626,146