Schedule of Accounts Payable and Accrued Expenses (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Accounts Payable and Accrued Liabilities [Line Items]
Trade accounts payable	$ 75,152	$ 96,642
Accrued salaries and wages	51,845	42,556
Accrued dividends	54,843	52,572
Accrued workers' compensation and auto liability	7,062	6,901
Accrued litigation	14,134	13,937
Accrued employee medical insurance	6,110	5,442
Accrued property taxes	27,900	27,288
Accrued interest	10,142	12,957
ROU lease liability	26,914
Deferred revenue	15,387	15,173
Construction payable	7,504	21,099
Lease financing obligation	8,603	12,771
Other	31,866	44,937
Accounts payable and accrued expenses, total	$ 337,462	$ 352,275