ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Accrued Expenses) (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Accrued Liabilities, Current [Abstract]
Accrued compensation	$ 119,293	$ 118,479
Accrued commissions	6,678	7,769
Accrued interest	8,982	8,944
Accrued insurance	7,550	6,951
Accrued other liabilities	22,241	24,811
Accrued expenses	$ 164,744	$ 166,954