Income Taxes (Tables)

12 Months Ended

Dec. 31, 2016

Income Taxes [Abstract]

Schedule Of Earnings Before Income Taxes

	For the Years Ended December 31,
		2016		2015		2014
Domestic	$	227,875	$	187,200	$	148,510
International		93,971		85,941		98,045
	$	321,846	$	273,141	$	246,555

Schedule Of Components Of Provision (Benefit) For Income Taxes

	For the Years Ended December 31,
		2016		2015		2014
Current
Federal	$	53,285	$	52,966	$	39,713
State		6,608		5,353		4,692
International		19,291		17,681		20,213
		79,184		76,000		64,618
Deferred
Federal		20,305		5,762		2,301
State		1,196		526		33
International		(893)		(1,282)		(2,348)
		20,608		5,006		(14)
	$	99,792	$	81,006	$	64,604

Schedule Of Effective Income Tax Rate Reconciliation

	For the Years Ended December 31,
		2016		2015		2014
U.S. federal statutory rate		35.0	%	35.0	%	35.0	%
State income tax, net of federal tax benefit		1.8		1.6		1.5
International income taxes		(4.8)		(5.3)		(7.0)
Domestic manufacturing exclusions		(1.0)		(1.5)		(1.2)
Research and development credit		(0.8)		(1.2)		(1.3)
Other, net		0.8		1.1		(0.8)
Effective tax rate		31.0	%	29.7	%	26.2	%

Schedule Of Components Of Net Deferred Tax Assets And Liabilities

	December 31, 2016			December 31, 2015
		Long-Term			Current		Long-Term
Assets
Accrued expenses		$	22,145	$	23,298	$	5,329
Accounts receivable reserves			2,715		2,973		-
Deferred revenue			13,400		7,392		3,656
Inventory basis differences			3,959		3,292		293
Property-based differences			1,382		-		1,524
Share-based compensation			13,021		2,565		10,580
Other			678		234		361
Net operating loss carryforwards			4,182		65		4,059
Unrealized losses on foreign currency exchange contracts, interest rate swaps and investments			148		-		53
Total assets			61,630		39,819		25,855
Valuation allowance			(4,891)		(507)		(3,939)
Total assets, net of valuation allowance			56,739		39,312		21,916
Liabilities
Accrued expenses			(143)		-		-
Accounts receivable reserves			(85)		-		-
Deferred revenue			(36)				-
Deferred instrument costs			(24,142)		-		(16,090)
Property-based differences			(43,159)		-		(35,079)
Intangible asset basis differences			(17,672)		-		(17,109)
Other			(507)		(550)		(1,460)
Unrealized gains on foreign currency exchange contracts, interest rate swaps and investments			(4,575)		(882)		-
Total liabilities			(90,319)		(1,432)		(69,738)
Net deferred tax assets (liabilities)		$	(33,580)	$	37,880	$	(47,822)

Schedule Of Changes In Unrecognized Tax Benefits

	For the Years Ended December 31,
		2016		2015		2014
Total amounts of unrecognized tax benefits, beginning of period	$	7,204	$	5,942	$	6,325
Gross increases in unrecognized tax benefits as a result of tax positions taken during a prior period		75		47		432
Gross increases in unrecognized tax benefits as a result of tax positions taken in the current period		12,657		1,569		1,789
Decreases in unrecognized tax benefits relating to settlements with taxing authorities		(1,326)		-		(2,242)
Decreases in unrecognized tax benefits as a result of a lapse of the applicable statutes of limitations		(147)		(354)		(362)
Total amounts of unrecognized tax benefits, end of period	$	18,463	$	7,204	$	5,942