Convertible Notes, Long-Term Debt and Credit Facility (Tables)

12 Months Ended

Dec. 31, 2012

Debt Disclosure [Abstract]

Components of convertible notes and long-term debt

Convertible notes and long-term debt are as follows (in thousands):

	December 31,
	2012			2011
Convertible notes:
Convertible senior unsecured notes (2008 Notes)	$	5,188		$	70,500
Convertible senior secured notes (2010 Notes)	—			36,004
Less discount on notes	(55		)	(6,766		)
Convertible senior notes, net of discount	5,133			99,738
Less amount reported as current	(5,133		)	—
Convertible senior notes reported as long-term	$	—		$	99,738
Long-term debt:
Term loan	$	25,000		$	—
Capital lease obligations	1,784			1,642
Total long-term debt	26,784			1,642
Less current portion of long-term debt	(4,329		)	(767		)
Long-term debt, less current portion	$	22,455		$	875

Schedule of maturities of convertible notes and long-term debt

Maturities of convertible notes and long-term debt at December 31, 2012 are as follows (in thousands):

Year ending December 31,	Term Loan		Convertible Senior Notes		Capital Leases		Total Convertible Notes and Long-Term Debt
2013	$	3,274	$	5,188	$	1,055	$	9,517
2014	3,572		—		678		4,250
2015	3,571		—		51		3,622
2016	3,571		—		—		3,571
2017	11,012		—		—		11,012
Total	$	25,000	$	5,188	$	1,784	$	31,972