Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Schedule of Income Before Income Taxes

Income before income taxes from continuing operations consisted of the following: 

	Year ended December 31,
	2017			2016		2015
Domestic	$	1,725,822		$	1,278,754	$	730,249
International	(326,036		)	344,351		(41,862		)
	$	1,399,786		$	1,623,105	$	688,387

Components of Income Tax Expense (Benefit)

Income tax expense (benefit) for continuing operations consisted of the following:

	Year ended December 31,
	2017			2016			2015
Current:
Federal	$	330,191		$	322,940		$	124,503
State	47,228			44,525			20,442
International	3,422			1,928			856
Total current income tax	380,841			369,393			145,801
Deferred:
Federal	(98,760		)	88,412			71,016
State	37,347			(28,530		)	(9,737		)
International	4,431			2,486			430
Total deferred income tax	(56,982		)	62,368			61,709
	$	323,859		$	431,761		$	207,510

Schedule of Allocation of Income Tax Expense (Benefit)

Income taxes are allocated between continuing and discontinued operations as follows:

	Year ended December 31,
	2017			2016		2015
Continuing operations	$	323,859		$	431,761	$	207,510
Discontinued operations	(364,856		)	24,052		88,216
	$	(40,997	)	$	455,813	$	295,726

Reconciliation between U.S. Federal Income Tax Rate and Effective Tax Rate

The reconciliation between the Company’s effective tax rate from continuing operations and the U.S. federal income tax rate is as follows:

	Year ended December 31,
	2017		2016		2015
Federal income tax rate	35.0	%	35.0	%	35.0	%
State income taxes, net of federal benefit	3.7		2.6		1.7
Gain on APAC JV ownership changes	(0.2	)	(9.9	)	—
APAC investment impairment	6.4		—		—
Impact of 2017 Tax Act	(20.5	)	—		—
Other	2.0		1.8		2.3
Impact of noncontrolling interests primarily attributable to non-tax paying entities	(3.3	)	(2.9	)	(8.9	)
Effective tax rate	23.1	%	26.6	%	30.1	%

Deferred Tax Assets and Liabilities Arising from Temporary Differences

Deferred tax assets and liabilities arising from temporary differences for continuing operations were as follows:

	December 31,
	2017			2016
Receivables	$	19,705		$	25,197
Accrued liabilities	96,537			224,712
Net operating loss carryforwards	108,429			128,813
Other	37,794			73,525
Deferred tax assets	262,465			452,247
Valuation allowance	(61,282		)	(56,016		)
Net deferred tax assets	201,183			396,231
Intangible assets	(501,763		)	(676,781		)
Property and equipment	(100,376		)	(141,919		)
Investments in partnerships	(61,529		)	(95,936		)
Other	(23,762		)	(12,464		)
Deferred tax liabilities	(687,430		)	(927,100		)
Net deferred tax liabilities	$	(486,247	)	$	(530,869	)

Reconciliation of the Beginning and Ending Liability for Unrecognized Tax Benefits that Do Not Meet the More-Likely-Than-Not Threshold

A reconciliation of the beginning and ending liability for unrecognized tax benefits that do not meet the more-likely-than-not threshold is as follows:

	Year ended December 31,
	2017			2016
Beginning balance	$	24,066		$	39,011
Additions for tax positions related to current year	7,606			9,714
Additions for tax positions related to prior years	804			—
Reductions related to lapse of applicable statute	(1,380		)	(1,277		)
Impact of 2017 Tax Act	3,731			—
Reductions related to settlements with taxing authorities	(2,051		)	(23,382		)
Ending balance	$	32,776		$	24,066