ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Accrued Expenses) (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Accrued Liabilities, Current [Abstract]
Accrued compensation	$ 73,643	$ 65,983
Accrued commissions	11,344	9,122
Accrued interest	4,994	4,282
Accrued taxes and other than income taxes	3,109	4,088
Accrued insurance	6,062	5,817
Other Accrued Liabilities, Current	31,915	15,904
Accrued expenses	$ 131,067	$ 105,196