INTEREST EXPENSE

9 Months Ended

Sep. 30, 2011

Interest Expense [Abstract]

Interest Expense

INTEREST EXPENSE

Interest expense comprised the following for the three and nine months ended September 30, 2011 and 2010:

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2011		2010		2011		2010
Interest on Senior Notes	$	22,543	$	18,083	$	68,195	$	54,308
Interest on Convertible Notes	4,842		4,156		13,637		12,468
Interest on capital leases and other financing arrangements	1,035		2,713		2,730		7,697
	28,420		24,952		84,562		74,473
Amortization of capitalized debt issuance costs	1,537		1,387		4,963		4,170
Amortization of issuance discount on Convertible Notes	4,281		5,249		13,529		15,645
Loss on extinguishment of debt (1)	924		—		25,904		—
	6,742		6,636		44,396		19,815
Total interest expense	$	35,162	$	31,588	$	128,958	$	94,288

(1) See Note 5 “Long-Term Debt and Other Financing Arrangements” for detail of the loss on extinguishment of debt.