Long-Term Debt (Tables)

3 Months Ended

Mar. 31, 2012

Long-Term Debt

Schedule of long-term obligations

	March 31, 2012				December 31, 2011
(in	Carrying		Estimated Fair Value		Carrying		Estimated Fair Value
thousands)	Value		Level 2		Value		Level 2
Convertible subordinated notes	$	172,500	$	178,436	$	172,500	$	189,588