Convertible Debt (Tables)

9 Months Ended

Sep. 30, 2012

Debt Disclosure [Abstract]

Key Components of Convertible Debt

The following tables represent the key components of our interest expense on convertible debt (table in thousands):

	For the Three Months Ended
	September 30, 2012		September 30, 2011
Contractual interest expense on the coupon	$	7,482	$	15,078
Amortization of the discount component recognized as interest expense	15,405		30,852
Total interest expense on the convertible debt	$	22,887	$	45,930

	For the Nine Months Ended
	September 30, 2012		September 30, 2011
Contractual interest expense on the coupon	$	22,427	$	45,266
Amortization of the discount component recognized as interest expense	45,059		90,174
Total interest expense on the convertible debt	$	67,486	$	135,440