Current and Noncurrent Accrued and Other Liabilities - Summary of Current and Noncurrent Accrued and Other Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Payables And Accruals [Abstract]
Accrued interest	$ 16,164	$ 6,505
Current portion of operating lease liabilities	5,717
Deferred revenue	4,859	5,216
Accrued payroll and benefits	3,866	7,259
Customer deposits	3,219	1,783
Accrued death and other executive benefits	2,581	2,777
Series E Redeemable Preferred - embedded derivative	1,843	1,642
Accrued health and worker compensation insurance claims	994	1,107
Accrued litigation settlement (see Note 6)		18,450
Other	6,801	6,251
Total current and noncurrent accrued liabilities	46,044	50,990
Less noncurrent portion	8,373	8,861
Current portion of accrued and other liabilities	$ 37,671	$ 42,129