Other Long Term Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Other Long Term Liabilities [Line Items]
Intangible contract liability	$ 5,417	$ 5,804
Accrued workers' compensation	28,769	22,798
Accrued deferred compensation	10,919	11,507
Lease financing obligation	7,634	18,817
ROU lease liability	51,247
Other	1,593	1,622
Other liabilities	$ 105,579	$ 60,548