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CONVERTIBLE SENIOR NOTES (Tables)

6 Months Ended

Jun. 30, 2014

CONVERTIBLE SENIOR NOTES

Schedule of carrying amounts of the liability and equity components of the convertible notes

		June 30, 2014			December 31, 2013
Carrying amount of the equity component (additional paid-in capital)		$	24,375		$	24,375
Principal amount of the 2010 Notes		125,000			125,000
Unamortized discount of the liability component		7,527			9,119
Net carrying amount of the liability component		117,473			115,881

Schedule of effective interest rate, cash and non-cash interest expense and deferred financing cost amortization

		For the Three Months Ended June 30,						For the Six Months Ended June 30,
		2014			2013			2014			2013
Effective interest rate on liability component		10.0		%	10.0		%	10.0		%	10.0		%
Cash interest expense recognized		$	345		$	1,571		$	1,886		$	3,112
Non-cash interest expense recognized		293			1,209			1,592			2,388
Non-cash deferred financing amortization costs included in interest expense		39			179			216			356

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Tabular disclosure of the details of the effective interest rate, interest expense and discount amortization related to convertible notes of the entity as well as deferred financing cost amortization.

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Tabular disclosure of information about the debt and equity components of convertible debt instruments.

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