Other Non-Current Liabilities - Statement of Composition of Other Non Current Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Other Liabilities Disclosure [Abstract]
Deferred revenue	$ 891	$ 1,215
Environmental and legal matters	12,023	20,404
Deferred compensation liability	49,835	43,819
Pension liability	19,407	26,722
Other non-current liabilities	14,024	11,704
Total other non-current liabilities	$ 96,180	$ 103,864