Income Taxes (Tables)

12 Months Ended

Dec. 31, 2011

Income Taxes [Abstract]

Components Of Income Before Income Tax Expense And A Reconciliation Of The Statutory Federal Income Tax Rate To The Income Tax Rate

	2011			2010			2009
Income (loss) before income tax expense:
U.S.	$	89,188		$	70,657		$	59,853
International		(841	)		1,115			1,279
Total	$	88,347		$	71,772		$	61,132
Income tax expense (benefit):
Current:
U.S.	$	32,871		$	18,706		$	18,464
State, local and foreign		3,892			2,441			2,198
Total		36,763			21,147			20,662
Deferred:
U.S.		(3,783	)		3,700			1,310
State, local and foreign		2,076			2,447			(3,000	)
Total		(1,707	)		6,147			(1,690	)
	$	35,056		$	27,294		$	18,972
U.S. statutory rate		35.0	%		35.0	%		35.0	%
Income tax expense at U.S. statutory rate	$	30,921		$	25,120		$	21,396
State income taxes, net of federal benefit		3,452			2,834			2,904
Meals and entertainment		198			187			199
Change in valuation allowance for foreign tax credit and capital loss		1,099			(169	)		—
State NOL's recognized		—			—			(4,801	)
Adjustments to tax liabilities		(279	)		202			207
Other		(335	)		(880	)		(933	)
Income tax expense	$	35,056		$	27,294		$	18,972
Effective tax rate		39.7	%		38.0	%		31.0	%

Schedule Of Unrecognized Tax Benefits

	2011			2010
Balance at January 1	$	1,896		$	2,210
Increases related to current year tax positions		107			270
Decreases related to prior years' tax positions		(537	)		(353	)
Expiration of the statute of limitations for the assessment of taxes		(166	)		(231	)
Balance at December 31	$	1,300		$	1,896

Schedule Of Temporary Differences And Resulting Deferred Income Tax Assets

	2011			2010
Deferred tax assets
Current deferred tax assets
Accruals	$	5,084		$	3,315
Net operating loss carryforwards		1,314			1,443
		6,398			4,758
Noncurrent deferred tax assets
Benefit plans	$	11,237		$	8,744
Accruals		2,372			1,192
Net operating loss carryforwards		760			1,575
Share-based compensation		7,573			5,742
Partnership interest		1,851			2,002
Investment impairment		1,355			—
Other		1,316			724
		26,464			19,979
Less valuation allowance		(1,262	)		(163	)
Total deferred tax assets		31,600			24,574
Deferred tax liabilities
Noncurrent deferred tax liabilities
Basis differences in intangible assets and property and equipment	$	(22,860	)	$	(19,346	)
Benefit plans		(2,476	)		(2,431	)
Other		(1,168	)		(734	)
Total deferred tax liabilities		(26,504	)		(22,511	)
Net deferred tax assets	$	5,096		$	2,063