SUBSEQUENT EVENTS (Narratives) (Details) (VIE - RSO [Member], Subsequent Event [Member], USD $)	1 Months Ended
	Oct. 31, 2013
Convertible Senior Notes Due 2018 [Member] | Convertible Senior Notes [Member]
Subsequent Event [Line Items]
Debt instrument amount, portion for underwriting agreement	$ 115,000,000
Interest rate (in hundredths)	6.00%
Debt amount, portion for over-allotments	15,000,000.0
Proceeds from issuance of long-term debt	111,100,000
Primary Capital Advisors LC [Member]
Subsequent Event [Line Items]
Total consideration for business acquisition	8,400,000
Payment in cash for business acquisition	7,600,000
Business acquisition consideration, stock	800,000
Escrow deposit	$ 1,800,000