OTHER ACCRUED LIABILITIES (Detail) - USD ($) $ in Thousands	Dec. 31, 2018		Jan. 01, 2018	[1]	Dec. 31, 2017
Payables and Accruals [Abstract]
Payroll and other compensation expenses	$ 47,988				$ 40,988
Insurance accruals	16,001				15,799
Property, sales and other non-income related taxes	7,271				6,483
Lease commitments	1,145				1,616
Contract liabilities	1,784	[1]	$ 5,415		6,102
Accrued commission	2,290				1,473
Accrued interest	5,261				5,950
Volume discount	4,322				1,545
Contingent consideration	429				1,246
Professional fees	1,219				1,098
Other	7,598				10,172
Total	$ 95,308				$ 92,472

[1] Included in the “Other accrued liabilities” line of the consolidated balance sheet.