Comprehensive Income (Loss) (Tables)

9 Months Ended

Sep. 30, 2011

Notes to Financial Statements [Abstract]

ScheduleOfComprehensiveIncomeLossTableTextBlock

			Three Months Ended				Nine Months Ended
			September 30,				September 30,
			2011		2010		2011		2010
				(In thousands)
Net earnings			$	58,032	$	37,331	$	178,467	$	168,680
	Change in fair value of interest rate hedges, net of tax of
		$(18,697), $(1,459), $(26,454) and $(5,073), respectively		(31,586)		(2,172)		(44,577)		(7,547)
	Reclassification of unrealized loss on interest rate hedges
		into earnings, net of tax of $2,294, $2,186, $6,775
		and $6,740, respectively		3,421		3,261		10,106		10,064
	Change in fair value of commodity hedges, net of tax of $3,039,
		$4,707, $2,674 and $14,320, respectively		5,395		8,352		4,746		25,413
	Reclassification of unrealized gain on commodity hedges
		into earnings, net of tax of $(2,017), $(2,019), $(5,327) and
		$(4,291), respectively		(3,581)		(3,584)		(9,455)		(7,616)
	Reclassification of net actuarial loss and prior service credit
		relating to pension and other postretirement benefits into
		earnings, net of tax of $566, $549, $1,708 and $1,651,
		respectively		709		723		2,116		2,165
	Change in other comprehensive income from equity
		investments, net of tax of $23, $22, $66 and $66, respectively		35		36		107		107
Total other comprehensive income (loss)				(25,607)		6,616		(36,957)		22,586
Total comprehensive income			$	32,425	$	43,947	$	141,510	$	191,266

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

		September 30,		December 31,
		2011		2010
		(In thousands)
Interest rate hedges, net		$	(51,703)	$	(17,232)
Commodity hedges, net			5,819		10,528
Benefit plans:
	Net actuarial loss and prior service costs, net - pensions		(29,067)		(32,982)
	Net actuarial gain and prior service credit, net - other postretirement benefits		408		2,207
Equity investments, net			(2,571)		(2,678)
Total Accumulated other comprehensive loss, net of tax		$	(77,114)	$	(40,157)