Investments and other assets - Components of Investments and Other Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Investments, All Other Investments [Abstract]
Cash value life insurance	$ 53,189	$ 52,883
Available-for-sale debt security	23,800	3,000
Equity method investments	21,986	32,067
Other equity investments	20,331	20,271
Deferred debt issuance costs	5,805	9,378
Other long-term assets	27,397	18,620
Total	$ 152,508	$ 136,219