Comprehensive Income (Loss) (Tables)

6 Months Ended

Jun. 30, 2011

Notes to Financial Statements [Abstract]

ScheduleOfComprehensiveIncomeLossTableTextBlock

			Three Months Ended				Six Months Ended
			June 30,				June 30,
			2011		2010		2011		2010
				(In thousands)
Net earnings			$	59,773	$	74,889	$	120,435	$	131,349
	Change in fair value of interest rate hedges, net of tax of
		$(6,891), $(1,308), $(7,757) and $(3,614), respectively		(11,587)		(1,945)		(12,991)		(5,375)
	Reclassification of unrealized loss on interest rate hedges
		into earnings, net of tax of $2,253, $2,250, $4,481
		and $4,554, respectively		3,362		3,357		6,685		6,803
	Change in fair value of commodity hedges, net of tax of $194,
		$(390), $(365) and $9,613, respectively		344		(690)		(649)		17,061
	Reclassification of unrealized gain on commodity hedges
		into earnings, net of tax of $(1,678), $(1,830), $(3,310) and $(2,272), respectively		(2,977)		(3,247)		(5,874)		(4,032)
	Reclassification of net actuarial loss and prior service credit
		relating to pension and other postretirement benefits into
		earnings, net of tax of $568, $551, $1,142
		and $1,102, respectively		706		722		1,407		1,442
	Change in other comprehensive income from equity
		investments, net of tax of $21, $22, $43 and $44, respectively		37		35		72		71
Total other comprehensive income (loss)				(10,115)		(1,768)		(11,350)		15,970
Total comprehensive income			$	49,658	$	73,121	$	109,085	$	147,319

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

		June 30,		December 31,
		2011		2010
		(In thousands)
Interest rate hedges, net		$	(23,538)	$	(17,232)
Commodity hedges, net			4,005		10,528
Benefit plans:
	Net actuarial loss and prior service costs, net - pensions		(30,372)		(32,982)
	Net actuarial gain and prior service credit, net - other postretirement benefits		1,004		2,207
Equity investments, net			(2,606)		(2,678)
Total Accumulated other comprehensive income, net of tax		$	(51,507)	$	(40,157)