Debt and Bank Borrowing Arrangements; Convertible Note and Common Stock Offerings (Tables)

12 Months Ended

Dec. 31, 2011

Debt and Bank Borrowing Arrangements; Convertible Note and Common Stock Offerings [Abstract]

Long-term debt and equity component

As of December 31, 2011and 2010, long-term debt and the equity component (recorded in additional paid in capital, net of income tax benefit), determined in accordance with the accounting guidance for convertible debt, comprised the following (in thousands):

	December 31, 2011			December 31, 2010
Long-term debt
Principal amount	$	93,100		$	93,100
Unamortized discount		(3,806	)		(7,501	)
Net carrying amount		89,294			85,599
Current portion of long-term debt		89,294			-
Noncurrent  portion of long-term debt	$	-		$	85,599
Equity component, net of income tax benefit	$	16,399		$	16,399

Interest expense, Convertible Notes

Interest expense on the Notes, excluding capitalized interest, for the years ended December 31, 2011, 2010 and 2009 included the following (in thousands):

	For the Years Ended December 31,
	2011		2010		2009
Contractual interest coupon	$	2,676	$	2,677	$	3,058
Non-cash amortization of discount on the liability component		3,694		3,436		3,641
Non-cash amortization of debt issuance costs		380		364		399
	$	6,750	$	6,477	$	7,098