Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2011

Long-Term Debt [Abstract]

Schedule of long-term debt instruments

Long-term debt consists of the following:

	December 31, 2011		December 31, 2010
Credit facility	$	155,000	$	240,000
Exchangeable unsecured notes, due 2102		95,042		95,042
Convertible senior debentures, due 2040		98,463		96,640
Convertible senior debentures, due 2041		50,549		-
		399,054		431,682
Less current portion		-		-
	$	399,054	$	431,682

Liability and equity components of convertible debt due 2040

The carrying values of the liability and equity components of the convertible debentures due 2040 are reflected in the Company’s consolidated balance sheets as follows:

	December 31, 2011			December 31, 2010
Liability component:
Principal amount of the debentures	$	275,000		$	275,000
Unamortized discount		(177,131	)		(178,679	)
Embedded derivative		594			319
Carrying value of liability component	$	98,463		$	96,640
Equity component - net carrying value	$	110,094		$	110,094

Convertible debt due 2040, interest expense

Interest expense related to the convertible debentures due 2040 is reflected on the consolidated statements of operations as follows:

	Years ended December 31,
	2011		2010
Contractual coupon interest	$	6,188	$	773
Non-cash amortization of debt discount		1,548		188
Non-cash amortization of deferred financing costs		88		11
Non-cash change in value of derivative liability		275		(55	)
Total interest expense related to the debentures	$	8,099	$	917

Aggregate annual maturities of long-term debt

Aggregate annual maturities of long-term debt, based on the terms stated in the respective agreements, are as follows:

2011	$	-
2012		-
2013		-
2014		-
2015		155,000
Thereafter		520,042

Liability and equity components of convertible debt due 2041.

The carrying values of the liability and equity components of the convertible debentures due 2041 are reflected in the Company’s consolidated balance sheet as follows:

	December 31, 2011
Liability component:
Principal amount of the debentures	$	150,000
Unamortized discount		(99,843	)
Embedded derivative		392
Carrying value of liability component	$	50,549
Equity component - net carrying value	$	62,246

Convertible debt due 2041, interest expense

Interest expense related to the convertible debentures due 2041 is reflected on the consolidated statements of operations as follows:

	Year ended
	December 31, 2011
Contractual coupon interest	$	2,128
Non-cash amortization of debt discount		498
Non-cash amortization of deferred financing costs		29
Non-cash change in value of derivative liability		181
Total interest expense related to the debentures	$	2,836