Income Taxes (Tables)

12 Months Ended

Dec. 31, 2015

Income Tax Disclosure [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign

Income from continuing operations before income taxes consists of the following components:

	Years Ended December 31,
	2015		2014		2013
Domestic	$	566,444	$	384,853	$	468,314
Foreign	16,350		12,175		687
Total	$	582,794	$	397,028	$	469,001

Schedule of Components of Income Tax Expense (Benefit)

Income tax expense attributable to continuing operations consists of the following components:

	Years Ended December 31,
	2015		2014			2013
Current expense (benefit):
Federal	$	146,915	$	111,047		$	(10,137	)
State	15,713		10,882			2,403
Foreign	14,508		13,837			5,104
	177,136		135,766			(2,630		)
Deferred expense (benefit):
Federal	12,563		5,036			154,299
State	1,300		(1,373		)	17,205
Foreign	5,753		(2,456		)	—
	19,616		1,207			171,504
Tax expense (benefit) relating to uncertain tax positions, including accrued interest	4,338		(7,818		)	9,967
Income tax expense	$	201,090	$	129,155		$	178,841

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation of the federal statutory income tax rate to the effective income tax rate is as follows:

	Years Ended December 31,
	2015		2014		2013
U.S. federal statutory income tax rate	35	%	35	%	35	%
State and local income taxes, net of federal benefit	2		2		2
Effect of foreign operations	(2	)	(2	)	—
Nontaxable income attributable to noncontrolling interests	(1	)	(1	)	—
Changes in the valuation allowance	1		1		1
Domestic production activity deduction	(3	)	(2	)	(1	)
Tax expense relating to uncertain tax positions, including accrued interest, net of deferred tax benefits	1		(1	)	2
Other	1		—		(1	)
Effective income tax rate	34	%	32	%	38	%

Schedule of Deferred Tax Assets and Liabilities

The tax effects of temporary differences that give rise to significant components of deferred tax assets or liabilities at December 31, 2015 and 2014 are as follows:

	December 31,
	2015			2014
Deferred Tax Asset (Liability)
Current
NOLs and tax credit carry forwards	$	7,076		$	9,003
Compensation and benefit plans	17,296			15,213
Allowance for doubtful accounts	261			286
Other liabilities	5,383			5,537
Deferred tax asset	30,016			30,039
Valuation allowance	(1,236		)	(596		)
Net deferred tax asset, current	28,780			29,443
Other assets	(12,636		)	(4,662		)
Deferred tax liability, current	(12,636		)	(4,662		)
Net deferred tax asset, current	16,144			24,781
Noncurrent
NOLs and tax credit carry forwards	76,285			68,042
Compensation and benefit plans	28,016			20,705
Fixed assets and intangible assets	35,781			43,751
Interest rate swap contracts	2,412			2,857
Accrued interest expense	11,692			10,522
Other liabilities	12,040			9,171
Deferred tax asset	166,226			155,048
Valuation allowance	(53,100		)	(50,434		)
Net deferred tax asset, noncurrent	113,126			104,614
Prepaid liabilities	(820		)	(781		)
Fixed assets and intangible assets	(70,337		)	(64,762		)
Investments in partnerships	(154,215		)	(138,790		)
Other assets	(16,114		)	(13,803		)
Deferred tax liability, noncurrent	(241,486		)	(218,136		)
Net deferred tax liability, noncurrent	(128,360		)	(113,522		)
Total net deferred tax liability	$	(112,216	)	$	(88,741	)

Schedule Of Unrecognized Tax Benefits Reconciliation

A reconciliation of the beginning to ending amount of the liability for uncertain tax positions (excluding related accrued interest and deferred tax benefit) is as follows:

Balance at December 31, 2014	$	17,099
Increases related to current year tax positions	2,888
Increases related to prior year tax positions	607
Decreases related to prior year tax positions	(344		)
Decreases due to lapse of statute of limitations	(12		)
Balance at December 31, 2015	$	20,238