Financing Arrangements (Tables)

9 Months Ended

Sep. 30, 2013

Financing Arrangements

Schedule of Liability and Equity Components of Convertible Debt

	September 30,		December 31,
(in thousands)	2013		2012
Carrying value of the equity component	$	19,519	$	19,519
Principal amount and carrying value of the liability component	18,398		18,472