Income Taxes (Tables)

12 Months Ended

Dec. 31, 2011

Income Taxes [Abstract]

Income Tax Expense (Benefit)

	Year Ended December 31,
	2011			2010			2009
Current:
Federal	$	2,147		$	1,664		$	1,458
State		676			1,494			1,442
Total current income tax expense		2,823			3,158			2,900
Deferred:
Federal		(3,714	)		(573	)		168
State		(326	)		3			12
Total deferred income tax (benefit) expense		(4,040	)		(570	)		180
Total income tax (benefit) expense	$	(1,217	)	$	2,588		$	3,080

Deferred Tax Assets And Liabilities

	December 31,
	2011			2010
Deferred tax assets:
Current:
Other current assets	$	351		$	445
Other		8			8
Total current deferred tax asset		359			453
Net operating loss carryforwards		2,363			862
Total long-term deferred tax asset		2,363			862
Valuation allowances		(428	)		(416	)
Total deferred tax assets		2,294			899
Deferred tax liabilities:
Current:
Other		(211	)		(213	)
Long-term:
Fixed assets		(5,744	)		(7,807	)
Intangible assets		(6,805	)		(7,386	)
Total long-term liability		(12,549	)		(15,193	)
Total deferred tax liabilities		(12,760	)		(15,406	)
Total net deferred tax liability	$	(10,466	)	$	(14,507	)

Federal Statutory Income Tax Rate To Income Before Income Taxes

	Year Ended December 31,
	2011			2010			2009
Income (loss) before income taxes	$	50,032		$	(47,953	)	$	9,258
Partnership (income) loss not subject to tax		(60,304	)		47,357			(7,822	)
Income (loss) subject to income taxes		(10,272	)		(596	)		1,436
Tax (benefit) expense at federal statutory rate	$	(3,595	)	$	(209	)	$	503
State income taxes, net of federal benefit		123			583			991
Effects of unrecognized tax positions, federal and state		1,964			1,909			1,733
Return to provision, federal and state		72			257			(224	)
Other		219			48			77
Income tax expense (benefit)	$	(1,217	)	$	2,588		$	3,080
Effective tax rate on income (loss) before income taxes		(1	)		(1	)		33	%

(1) Income tax expense is related to taxable income generated by our corporate subsidiaries and Texas Margin Tax. Due to the income tax benefit in 2011 and the loss before income taxes in 2010, the effective tax rate as a percentage of our total income (loss) before income taxes is not meaningful.

Reconciliation Of The Beginning And Ending Balances Of Unrecognized Tax Positions

		0000000
Balance at January 1, 2009	$	2,599
Additions based on tax positions related to current year		1,733
Balance at December 31, 2009		4,332
Additions based on tax positions related to current year		1,909
Balance at December 31, 2010		6,241
Additions based on tax positions related to current year		1,964
Balance at December 31, 2011	$	8,205