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CONVERTIBLE SENIOR NOTES

9 Months Ended

Sep. 30, 2011

10 — CONVERTIBLE SENIOR NOTES

The Company issued $125,000 of 5.0% Convertible Senior Notes on July 27, 2010 (the “2010 Notes”). The Indenture includes customary agreements and covenants by the Company, including with respect to events of default.

The following tables provide additional information about the Company’s 2010 Notes:

	September 30, 2011		December 31, 2010
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	19,692		22,691
Net carrying amount of the liability component	105,308		102,309

	Three Months Ended September 30,						Nine Months Ended September 30,
	2011			2010			2011			2010
Effective interest rate on liability component	9.96		%	9.94		%	9.89		%	9.94		%
Cash interest expense recognized	$	1,584		$	1,146		$	4,677		$	1,146
Non-cash interest expense recognized	1,046			671			2,999			671
Non-cash deferred financing amortization costs included in interest expense	181			127			538			127

The remaining period over which the unamortized discount will be recognized is 3.9 years. As of September 30, 2011, the if-converted value of the 2010 Notes does not exceed their principal amount.

The 2010 Notes have been classified as a noncurrent liability on the consolidated balance sheet as of September 30, 2011 because the Company can settle the principal amount of the notes with shares, cash, or a combination thereof at its discretion.