Convertible Senior Notes due 2016 (Tables)

3 Months Ended

Mar. 31, 2013

Convertible Senior Notes due 2016

Summary of equity and liability components

	March 31, 2013
	(In thousands)
Carrying amount of the equity component	$	89,468
Net carrying amount of the liability component	$	88,039
Unamortized discount of the liability component	$	52,492