Financing Arrangements (Tables)

6 Months Ended

Jun. 30, 2013

Financing Arrangements

Schedule of Liability and Equity Components of Convertible Debt

(in thousands)	June 30, 2013		December 31, 2012
Carrying value of the equity component	$	19,519	$	19,519
Principal amount and carrying value of the liability component	18,469		18,472