Income Taxes (Tables)

12 Months Ended

Dec. 31, 2011

Income Taxes

Schedule Of Total Income Tax Expense

		2011		2010		2009
Income from continuing operations		$	35,841	$	33,791	$	34,347
Discontinued operations			2,164		(593)		1,627
Shareholders’ equity			(649)		(71)		(2)
Other comprehensive income			332		860		646
	Total	$	37,688	$	33,987	$	36,618

Schedule of Components of Income Tax Expense (Benefit)

		2011		2010		2009
Current:
	Federal	$	11,809	$	11,233	$	16,409
	State		3,573		3,327		4,291
Deferred:
	Federal		17,976		16,402		11,552
	State		2,483		2,829		2,095
	Income tax expense	$	35,841	$	33,791	$	34,347

Schedule of Effective Income Tax Rate Reconciliation

		2011		2010		2009
Statutory federal income tax		$	79,486	$	74,655	$	73,830
Less federal income tax assumed directly by noncontrolling interests			(49,021)		(44,927)		(44,049)
State income taxes, net of federal income tax benefit			3,755		4,048		4,127
Increase in valuation allowances			1,563		222		327
Interest related to unrecognized tax benefits			(83)		(151)		2
Other			141		(56)		110
	Income tax expense	$	35,841	$	33,791	$	34,347

Summary of Income Tax Contingencies

		2011		2010		2009
Balance at beginning of year		$	7,144	$	6,766	$	6,190
Additions for tax positions of current year			342		378		576
Decreases for tax positions taken during a prior period			(190)		-		-
Lapse of statute of limitations			(44)		-		-
	Balance at end of year	$	7,252	$	7,144	$	6,766

Schedule of Deferred Tax Assets and Liabilities

			2011		2010
Deferred tax assets:
	Allowance for uncollectible accounts		$	841	$	1,315
	Accrued assets and other			3,562		1,800
	Valuation allowances			(1,491)		(925)
		Total current deferred tax assets		2,912		2,190
	Share-based compensation			9,138		8,945
	Interest on unrecognized tax benefits			456		533
	Accrued liabilities and other			2,951		2,242
	Operating and capital loss carryforwards			7,624		4,155
	Valuation allowances			(6,133)		(4,045)
		Total non-current deferred tax assets		14,036		11,830
		Total deferred tax assets		16,948		14,020
Deferred tax liabilities:
	Prepaid expenses			783		681
	Property and equipment, principally due to differences in depreciation			4,143		2,255
	Goodwill, principally due to differences in amortization			124,060		99,664
		Total deferred tax liabilities		128,986		102,600
		Net deferred tax liabilities	$	112,038	$	88,580

Schedule Of Deferred Tax Assets And Liabilities, Net

		2011		2010
Current deferred income tax assets		$	2,129	$	1,509
Non-current deferred income tax liabilities			114,167		90,089
	Net deferred tax liabilities	$	112,038	$	88,580