Income Taxes (Tables)

12 Months Ended

Dec. 31, 2015

Income Tax Disclosure [Abstract]

Schedule of Components of Income before Income Taxes

Following is a summary of the components of income before income taxes for the years ended December 31 (in thousands):

	2015		2014		2013
U.S.	$	165,848	$	188,963	$	186,330
Non-U.S.	106,363		85,720		80,109
Income before income taxes	$	272,211	$	274,683	$	266,439

Schedule of Components of Income Tax

The expense for income taxes on the above income consists of the following components (in thousands):

	2015			2014			2013
Current tax expense:
U.S. federal	$	48,801		$	49,281		$	20,215
State and local	10,300			5,135			4,928
Foreign	23,225			16,653			17,167
Total current	82,326			71,069			42,310
Deferred tax (benefit) expense:
U.S. federal	(884		)	(6,670		)	18,824
State and local	(702		)	6,477			2,742
Foreign	1,550			779			(4,688		)
Total deferred	(36		)	586			16,878
Total current and deferred	82,290			71,655			59,188
Benefit (expense) relating to interest rate swaps used to increase (decrease) equity	893			(1,442		)	(1,405		)
Benefit from stock transactions with employees used to increase equity	13,960			18,704			25,373
Benefit (expense) relating to defined-benefit pension adjustments used to increase (decrease) equity	(567		)	2,000			482
Total tax expense	$	96,576		$	90,917		$	83,638

Schedule of Deferred Tax Assets and Liabilities

Current and long-term deferred tax assets and liabilities are comprised of the following (in thousands):

	December 31,
	2015			2014
Accrued liabilities	$	67,888		$	67,066
Loss and credit carryforwards	8,522			13,350
Assets relating to equity compensation	22,686			19,920
Other assets	6,712			3,420
Gross deferred tax assets	105,808			103,756
Property, equipment, and leasehold improvements	(9,904		)	(10,817		)
Intangible assets	(55,275		)	(29,400		)
Prepaid expenses	(28,535		)	(26,584		)
Other liabilities	(7,244		)	(3,591		)
Gross deferred tax liabilities	(100,958		)	(70,392		)
Valuation allowance	(1,828		)	(570		)
Net deferred tax assets (1)	$	3,022		$	32,794

(1) The reduction in net deferred tax assets year-over-year is primarily attributable to the recognition of deferred tax liabilities for purchased intangibles in conjunction with the Company's 2015 acquisitions.

Schedule of Effective Income Tax Rate Reconciliation

The differences between the U.S. federal statutory income tax rate and the Company’s effective tax rate on income before income taxes for the years ended December 31 follow:

	2015		2014		2013
Statutory tax rate	35.0	%	35.0	%	35.0	%
State income taxes, net of federal benefit	3.4		3.1		3.2
Effect of non-U.S. operations	(7.7	)	(7.0	)	(6.1	)
Record (release) reserve for tax contingencies	3.0		2.6		0.9
Record (release) valuation allowance	0.5		—		(0.5	)
Other items, net	1.3		(0.6	)	(1.1	)
Effective tax rate	35.5	%	33.1	%	31.4	%

Schedule of Reconciliation of Beginning and Ending Unrecognized Tax Benefits

The following is a reconciliation of the beginning and ending amount of unrecognized tax benefits, excluding interest and penalties, for the years ending December 31 (in thousands):

	2015			2014
Beginning balance	$	20,645		$	14,488
Additions based on tax positions related to the current year	5,150			6,351
Additions for tax positions of prior years	7,839			4,112
Reductions for tax positions of prior years	(3,880		)	(2,317		)
Reductions for expiration of statutes	(2,287		)	(1,027		)
Settlements	(960		)	(143		)
Change in foreign currency exchange rates	(596		)	(819		)
Ending balance	$	25,911		$	20,645