INCOME TAXES (Tables)

12 Months Ended

Sep. 30, 2012

INCOME TAXES

Schedule of components of the provision for income taxes

	Years Ended September 30,
	2012			2011			2010
	(in thousands)
Current:
Federal	$	108,297		$	42,377		$	31,312
Foreign		13,201			14,259			13,215
State		10,542			8,112			1,937
		132,040			64,748			46,464
Deferred:
Federal		196,373			185,076			100,206
Foreign		(6,484	)		(4,117	)		7,846
State		7,042			6,692			(2,361	)
		196,931			187,651			105,691
Total provision	$	328,971		$	252,399		$	152,155

Schedule of domestic and foreign income before income taxes

	Years Ended September 30,
	2012		2011		2010
	(in thousands)
Domestic	$	886,484	$	666,073	$	389,383
Foreign		16,096		20,994		48,853
	$	902,580	$	687,067	$	438,236

Schedule of components of net deferred tax liabilities

	September 30,
	2012		2011
	(in thousands)
Deferred tax liabilities:
Property, plant and equipment	$	1,103,769	$	898,657
Available-for-sale securities		154,463		119,464
Other		4		62
Total deferred tax liabilities		1,258,236		1,018,183
Deferred tax assets:
Pension reserves		9,482		14,260
Self-insurance reserves		7,737		8,344
Net operating loss and foreign tax credit carryforwards		59,730		54,967
Financial accruals		39,833		36,672
Other		6,533		3,224
Total deferred tax assets		123,315		117,467
Valuation allowance		56,564		54,709
Net deferred tax assets		66,751		62,758
Net deferred tax liabilities	$	1,191,485	$	955,425

Schedule of effective income tax rates as compared to the U.S. Federal income tax rate

	Years Ended September 30,
	2012			2011			2010
U.S. Federal income tax rate		35	%		35	%		35	%
Effect of foreign taxes		1			1			1
State income taxes		0			1			(1	)
Effective income tax rate		36	%		37	%		35	%

Schedule of reconciliation of the change in the entity's gross unrecognized tax benefits

	September 30,
	2012			2011
	(in thousands)
Unrecognized tax benefits at October 1,	$	6,878		$	5,549
Gross decreases—tax positions in prior periods		(4	)		(249	)
Gross increases—tax positions in prior periods		2,632			2,561
Gross increases—current period effect of tax positions		(242	)		434
Expiration of statute of limitations for assessments		(826	)		(1,417	)
Unrecognized tax benefits at September 30,	$	8,438		$	6,878