FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Details 2) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Fair value disclosure
Carrying value of debt obligations	$ 105,080	$ 112,845
Carrying value
Fair value disclosure
Carrying value of debt obligations	98,661	105,832
Fair value disclosure
Fair value disclosure
Fair value of debt obligations	98,743	105,842
Term Loan
Fair value disclosure
Carrying value of debt obligations	80,625	83,750
Term Loan | Carrying value
Fair value disclosure
Carrying value of debt obligations	80,625	83,750
Term Loan | Fair value disclosure
Fair value disclosure
Fair value of debt obligations	80,625	83,750
Notes payable
Fair value disclosure
Carrying value of debt obligations	18,036	22,082
Notes payable | Carrying value
Fair value disclosure
Carrying value of debt obligations	18,036	22,082
Notes payable | Fair value disclosure
Fair value disclosure
Fair value of debt obligations	$ 18,118	$ 22,092