OTHER BALANCE SHEET INFORMATION - Other Current Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Other current liabilities:
Accrued payroll, taxes and employee benefits	$ 43,750	$ 34,956
Accrued operating expenditures	39,812	36,573
Income, sales, use and other taxes	30,387	37,064
Self-insurance reserve	32,105	32,129
Accrued interest	3,876	15,285
Insurance premium financing	1,163	8,049
Share-based compensation and other liabilities	5,463	5,889
Total	$ 156,556	$ 169,945