COMMITMENTS AND CONTINGENCIES (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013 item
Commitments and contingencies
Number of third party auditors issuing notice	2
Indemnification Agreement
Commitments and contingencies
Indemnification agreement with certain officers, maximum	$ 10
IRS proposed adjustment
Commitments and contingencies
Estimated income tax payment if the IRS prevails on every issue identified in audit and the entity does not litigate these issues	$ 26.6