Consolidated Statements of Earnings (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net sales
Net sales of tangible products	$ 1,498,562us-gaap_SalesRevenueGoodsNet	$ 984,532us-gaap_SalesRevenueGoodsNet	$ 948,227us-gaap_SalesRevenueGoodsNet
Revenue from services and software	172,010us-gaap_SalesRevenueServicesNet	53,627us-gaap_SalesRevenueServicesNet	47,941us-gaap_SalesRevenueServicesNet
Total net sales	1,670,572us-gaap_SalesRevenueNet	1,038,159us-gaap_SalesRevenueNet	996,168us-gaap_SalesRevenueNet
Cost of sales
Cost of sales of tangible products	792,137us-gaap_CostOfGoodsSold	507,513us-gaap_CostOfGoodsSold	479,633us-gaap_CostOfGoodsSold
Cost of services and software	100,410us-gaap_CostOfServices	27,036us-gaap_CostOfServices	24,891us-gaap_CostOfServices
Total cost of sales	892,547us-gaap_CostOfGoodsAndServicesSold	534,549us-gaap_CostOfGoodsAndServicesSold	504,524us-gaap_CostOfGoodsAndServicesSold
Gross profit	778,025us-gaap_GrossProfit	503,610us-gaap_GrossProfit	491,644us-gaap_GrossProfit
Operating expenses:
Selling and marketing	213,304us-gaap_SellingAndMarketingExpense	138,020us-gaap_SellingAndMarketingExpense	129,906us-gaap_SellingAndMarketingExpense
Research and development	151,103us-gaap_ResearchAndDevelopmentExpense	91,147us-gaap_ResearchAndDevelopmentExpense	87,364us-gaap_ResearchAndDevelopmentExpense
General and administrative	138,214us-gaap_GeneralAndAdministrativeExpense	96,216us-gaap_GeneralAndAdministrativeExpense	92,167us-gaap_GeneralAndAdministrativeExpense
Amortization of intangible assets	54,096us-gaap_AmortizationOfIntangibleAssets	7,383us-gaap_AmortizationOfIntangibleAssets	4,673us-gaap_AmortizationOfIntangibleAssets
Acquisition and integration costs	126,711	4,690	3,109
Exit and restructuring costs	6,007us-gaap_RestructuringCharges	5,890us-gaap_RestructuringCharges	960us-gaap_RestructuringCharges
Asset impairment charge	0	0	9,114
Total operating expenses	689,435us-gaap_OperatingExpenses	343,346us-gaap_OperatingExpenses	327,293us-gaap_OperatingExpenses
Operating income	88,590us-gaap_OperatingIncomeLoss	160,264us-gaap_OperatingIncomeLoss	164,351us-gaap_OperatingIncomeLoss
Other income (expense):
Investment income gain (loss)	(714)us-gaap_GainLossOnInvestments	2,366us-gaap_GainLossOnInvestments	2,485us-gaap_GainLossOnInvestments
Foreign exchange loss	(8,759)	(524)	(941)
Forward swaps loss	(4,649)	0	0
Interest expense	(56,836)us-gaap_InterestExpense	(98)us-gaap_InterestExpense	(207)us-gaap_InterestExpense
Other, net	(1,003)us-gaap_OtherNonoperatingIncomeExpense	1,819us-gaap_OtherNonoperatingIncomeExpense	(1,514)us-gaap_OtherNonoperatingIncomeExpense
Total other (expense) income	(71,961)us-gaap_NonoperatingIncomeExpense	3,563us-gaap_NonoperatingIncomeExpense	(177)us-gaap_NonoperatingIncomeExpense
Income from continuing operations before income taxes	16,629	163,827	164,174
Income taxes	(15,800)us-gaap_IncomeTaxExpenseBenefit	29,602us-gaap_IncomeTaxExpenseBenefit	42,277us-gaap_IncomeTaxExpenseBenefit
Income from continuing operations	32,429	134,225	121,897
Income from discontinued operations, net of tax	0	133	1,007
Net income	$ 32,429us-gaap_NetIncomeLoss	$ 134,358us-gaap_NetIncomeLoss	$ 122,904us-gaap_NetIncomeLoss
Basic earnings per share
Income from continuing operations	$ 0.64	$ 2.65	$ 2.36
Income from discontinued operations	$ 0.00	$ 0.00	$ 0.02
Net income	$ 0.64us-gaap_EarningsPerShareBasic	$ 2.65us-gaap_EarningsPerShareBasic	$ 2.38us-gaap_EarningsPerShareBasic
Diluted earnings per share
Income (loss) from continuing operations	$ 0.63	$ 2.63	$ 2.35
Income from discontinued operations	$ 0.00	$ 0.00	$ 0.02
Net income	$ 0.63us-gaap_EarningsPerShareDiluted	$ 2.63us-gaap_EarningsPerShareDiluted	$ 2.37us-gaap_EarningsPerShareDiluted
Basic weighted average shares outstanding	50,789	50,693	51,566
Diluted weighted average and equivalent shares outstanding	51,380	51,063	51,843

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Data Type:	xbrli:monetaryItemType
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Period Type:	duration