Debt (Tables)

12 Months Ended

Dec. 31, 2011

Debt [Abstract]

Debt

in thousands	2011		2010
Short-term Borrowings
Bank line of credit		$0		$285,500
Total short-term borrowings		$0		$285,500
Long-term Debt
Bank line of credit		$0		$0
5.60% notes due 2012 1		134,508		299,773
6.30% notes due 2013 2		140,352		249,729
Floating-rate term loan due 2015		0		450,000
10.125% notes due 2015 3		153,464		149,597
6.50% notes due 2016 4		518,293		0
6.40% notes due 2017 5		349,869		349,852
7.00% notes due 2018 6		399,693		399,658
10.375% notes due 2018 7		248,526		248,391
7.50% notes due 2021 8		600,000		0
7.15% notes due 2037 9		239,545		249,324
Medium-term notes		16,000		21,000
Industrial revenue bonds		14,000		14,000
Other notes		1,189		1,438
Total long-term debt including current maturities		$2,815,439		$2,432,762
Less current maturities of long-term debt		134,762		5,246
Total long-term debt		$2,680,677		$2,427,516
Estimated fair value of long-term debt		$2,796,504		$2,559,059

¹  Includes decreases for unamortized discounts, as follows: December 31, 2011 — $49 thousand and December 31, 2010 — $227 thousand. The effective interest rate for these notes is 6.57%.

²  Includes decreases for unamortized discounts, as follows: December 31, 2011 — $92 thousand and December 31, 2010 — $271 thousand. The effective interest rate for these notes is 7.48%.

³  Includes an increase for the unamortized portion of the deferred gain realized upon the August 2011 settlement of interest rate swaps, as follows: December 31, 2011 — $3,802 thousand. Additionally, includes decreases for unamortized discounts, as follows: December 31, 2011 — $338 thousand and December 31, 2010 — $403 thousand. The effective interest rate for these notes is 9.59%.

⁴  Includes an increase for the unamortized portion of the deferred gain realized upon the August 2011 settlement of interest rate swaps, as follows: December 31, 2011 — $18,293 thousand. The effective interest rate for these notes is 6.02%.

⁵  Includes decreases for unamortized discounts, as follows: December 31, 2011 — $131 thousand and December 31, 2010 — $148 thousand. The effective interest rate for these notes is 7.41%.

⁶  Includes decreases for unamortized discounts, as follows: December 31, 2011 — $307 thousand and December 31, 2010 — $342 thousand. The effective interest rate for these notes is 7.87%.

⁷  Includes decreases for unamortized discounts, as follows: December 31, 2011 — $1,474 thousand and December 31, 2010 — $1,609 thousand. The effective interest rate for these notes is 10.62%.

⁸  The effective interest rate for these notes is 7.75%.

⁹  Includes decreases for unamortized discounts, as follows: December 31, 2011 — $643 thousand and December 31, 2010 — $676 thousand. The effective interest rate for these notes is 8.05%.

Total (principal and interest) debt payments, excluding bank line of credit

in thousands	Total		Principal		Interest
Debt Payments (excluding bank line of credit)
2012	$	335,050	$	134,762	$	200,288
2013		337,546		150,610		186,936
2014		186,956		177		186,779
2015		336,913		150,145		186,768
2016		671,707		500,134		171,573