Debt (Tables)

9 Months Ended

Sep. 30, 2011

Debt [Abstract]

Debt

Total debt outstanding was comprised of the following:

	September 30, 2011		December 31, 2010
5.0% senior, unsecured notes due December 15, 2012, net of discount, including cumulative change in fair value of hedged debt: 2011 - $1,114 increase; 2010 - $4,879 increase	$	85,897	$	284,843
5.125% senior, unsecured notes due October 1, 2014, net of discount, including cumulative change in fair value of hedged debt: 2011 - $3,366 increase		256,695		263,279
7.375% senior notes due June 1, 2015		200,000		200,000
7.0% senior notes due March 15, 2019		200,000		-
Long-term portion of debt		742,592		748,122
Amounts drawn on credit facility		33,000		7,000
Total debt	$	775,592	$	755,122

Credit facility, amounts outstanding

Amounts outstanding under our credit facility were as follows:

	Nine Months Ended September 30, 2011			Year Ended December 31, 2010
Daily average amount outstanding	$	22,670		$	49,957
Weighted-average interest rate		3.02	%		3.20	%

Credit facility, amount available for borrowing

As of September 30, 2011, amounts were available for borrowing under our credit facility as follows:

	Total available
Credit facility commitment	$	200,000
Amounts drawn on credit facility		(33,000	)
Outstanding letters of credit		(8,551	)
Net available for borrowing as of September 30, 2011	$	158,449