Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Income Taxes

Components of the Company's deferred tax assets and liabilities

Year ended December 31,	2012			2011
	(in thousands)
Deferred tax assets:
Stock-based compensation expense	$	48,098		$	37,752
Accrued expenses		64,047			53,050
Deferred tax assets resulting from unrecognized tax benefits		10,839			12,231
Net operating losses		6,935			6,165
Accumulated other comprehensive loss		2,709			59
Gross deferred tax assets		132,628			109,257
Less valuation allowance		(3,221	)		(3,160	)
Net deferred tax assets		129,407			106,097
Deferred tax liabilities:
Property, plant and equipment		(174,285	)		(123,525	)
Intangibles		(131,686	)		(117,842	)
Net deferred tax liabilities		(305,971	)		(241,367	)
Net:	$	(176,564	)	$	(135,270	)
Reflected on consolidated balance sheets:
Current deferred tax assets, net	$	39,793		$	32,306
Noncurrent deferred tax liabilities, net		(216,357	)		(167,576	)
Net deferred taxes	$	(176,564	)	$	(135,270	)

Schedule of the provision for income taxes charged to operations

Year ended December 31,	2012			2011			2010
	(in thousands)
Current tax expense
Federal	$	96,490		$	106,982		$	55,008
State		14,448			23,392			11,630
Foreign		(3,366	)		(5,053	)		1,744
Total current		107,572			125,321			68,382
Deferred tax (benefit) expense
Federal		44,874			24,893			(4,996	)
State		109			(3,333	)		2,792
Total deferred		44,983			21,560			(2,204	)
Total provision	$	152,555		$	146,881		$	66,178

Reconciliation of the statutory federal income tax rate to the actual effective income tax rate

Year ended December 31,	2012			2011			2010
Percent of pretax income
Federal taxes		35.0	%		35.0	%		35.0	%
State and local income taxes		1.4	%		3.4	%		197.1	%
Permanent differences		5.3	%		2.2	%		1263.1	%
Foreign		0.2	%		(1.6	)%		16.1	%
Other miscellaneous items		(0.1	)%		(1.3	)%		(46.5	)%
		41.8	%		37.7	%		1464.8	%

Year ended December 31,	2012			2011			2010
	(in thousands)
Amount based upon pretax income
Federal taxes	$	127,584		$	136,205		$	1,581
State and local income taxes		5,044			13,398			8,905
Permanent differences		19,223			8,405			57,058
Foreign		886			(6,223	)		729
Other miscellaneous items		(182	)		(4,904	)		(2,095	)
	$	152,555		$	146,881		$	66,178

Reconciliation of liability for unrecognized tax benefits

	Noncurrent tax liabilities
	(in thousands)
Balance at December 31, 2010	$	36,846
Additions based on current year positions		4,309
Additions based on prior year positions		3,178
Decreases due to settlements and/or reduction in liabilities		(10,422	)
Currency translation adjustments		(39	)
Balance at December 31, 2011		33,872
Additions based on current year positions		2,465
Additions based on prior year positions		5,919
Payments made on account		(13,123	)
Decreases due to settlements and/or reduction in reserves		(9,639	)
Currency translation adjustments		899
Balance at December 31, 2012	$	20,393