ACCRUED EXPENSES (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Accrued Expenses [ABSTRACT]
Insurance	$ 54,105	$ 48,243
Interest	17,900	20,061
Accrued disposal costs	1,498	1,835
Accrued compensation and benefits	71,030	70,250
Income, real estate, sales and other taxes	54,403	35,640
Other	57,877	56,400
Total accrued expenses	$ 256,813	$ 232,429