INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2013

INCOME TAXES

Summary of income before income taxes

	Year ended December 31,
	2013		2012		2011
	(in thousands)
Domestic	$	389,459	$	372,669	$	206,971
Foreign		18,010		7,615		633
Total income before income taxes	$	407,469	$	380,284	$	207,604

Summary of income tax expense (benefit)

	Year ended December 31,
	2013			2012			2011
	(in thousands)
Current:
Federal	$	120,137		$	117,332		$	63,130
State		15,433			21,099			13,371
Foreign		8,656			5,022			4,091
		144,226			143,453			80,592
Deferred:
Federal		(363	)		(2,238	)		(3,310	)
State		(955	)		(1,222	)		(1,351	)
Foreign		(460	)		95			(660	)
		(1,778	)		(3,365	)		(5,321	)
Income tax expense	$	142,448		$	140,088		$	75,271

Summary of differences between the Company's effective tax rate and the federal statutory tax rate

	Year ended December 31,
	2013			2012			2011
Percent of pretax earnings:
Statutory federal tax rate		35.0	%		35.0	%		35.0	%
Increase (reduction) resulting from:
State income tax, net of federal tax benefit		3.1	%		3.2	%		3.0	%
Other permanent differences		0.1	%		0.6	%		2.0	%
International operations, net of foreign tax credits		0.0	%		(0.1	)%		(1.6	)%
Federal tax credits and income deductions		(2.1	)%		(2.1	)%		(2.4	)%
Tax impact of uncertain tax positions and other		(1.1	)%		0.2	%		0.3	%
Effective income tax rate		35.0	%		36.8	%		36.3	%

Summary of significant components of the Company's deferred tax assets and liabilities

	December 31,
	2013									2012
	Assets			Liabilities			Net			Assets			Liabilities			Net
	(in thousands)
Deferred tax:
Current assets (liabilities):
Operating reserves	$	3,345		$	—		$	3,345		$	4,507		$	—		$	4,507
Deferred revenue		2,871			—			2,871			2,377			—			2,377
Prepaid expenses		—			(5,699	)		(5,699	)		—			(3,901	)		(3,901	)
Accrued worker compensation		2,562			—			2,562			2,436			—			2,436
Other		3,790			(3,051	)		739			3,028			(3,182	)		(154	)
Total current	$	12,568		$	(8,750	)	$	3,818		$	12,348		$	(7,083	)	$	5,265
Non-current assets (liabilities):
Intangibles	$	—		$	(324,606	)	$	(324,606	)	$	—		$	(318,429	)	$	(318,429	)
Fixed assets		17,410			—			17,410			14,809			—			14,809
Stock compensation		3,111			—			3,111			2,711			—			2,711
Net operating loss carryforwards		6,763			—			6,763			7,020			—			7,020
Long-term rent liabilities		9,766			—			9,766			8,141			—			8,141
Other		5,744			—			5,744			4,310			—			4,310
Valuation allowance		(565	)		—			(565	)		(1,765	)		—			(1,765	)
Total non-current	$	42,229		$	(324,606	)	$	(282,377	)	$	35,226		$	(318,429	)	$	(283,203	)
Total net deferred taxes	$	54,797		$	(333,356	)	$	(278,559	)	$	47,574		$	(325,512	)	$	(277,938	)

Summary of reconciliation of the beginning and ending amount of unrecognized tax benefits

	December 31,
	2013			2012			2011
	(in thousands)
Balance of unrecognized tax benefits at beginning of period	$	12,882		$	10,574		$	8,720
Additions for tax positions taken during current period		873			1,215			1,104
Additions for tax positions taken during prior periods		1,965			4,220			750
Reductions for tax positions taken during prior periods		(4,068	)		(1,439	)		—
Settlements		(804	)		(1,688	)		—
Balance of unrecognized tax benefits at end of period	$	10,848		$	12,882		$	10,574