Consolidated Condensed Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Income Statement [Abstract]
Product revenues	$ 206,909us-gaap_SalesRevenueGoodsNet	$ 193,938us-gaap_SalesRevenueGoodsNet
Cost of sales	140,339us-gaap_CostOfGoodsSold	136,913us-gaap_CostOfGoodsSold
Gross margin	66,570us-gaap_GrossProfit	57,025us-gaap_GrossProfit
Operating expenses:
Net research and development expenses	14,548	13,045
Acquisition transaction expenses		1,075
Selling, general and administrative	24,945	17,867
Total operating expenses	39,493us-gaap_OperatingExpenses	31,987us-gaap_OperatingExpenses
Operating income	27,077us-gaap_OperatingIncomeLoss	25,038us-gaap_OperatingIncomeLoss
Interest expense	(564)us-gaap_InterestIncomeExpenseNet	(931)us-gaap_InterestIncomeExpenseNet
Revaluation of derivatives loss	(964)us-gaap_UnrealizedGainLossOnDerivatives	(247)us-gaap_UnrealizedGainLossOnDerivatives
Foreign currency gain (loss)	435	(1,523)
Gain from equity investment		785
Other income (expense)	195us-gaap_OtherNonoperatingIncomeExpense	(241)us-gaap_OtherNonoperatingIncomeExpense
Earnings before income tax	26,179	22,881
Income tax expense	6,359us-gaap_IncomeTaxExpenseBenefit	6,302us-gaap_IncomeTaxExpenseBenefit
Net income	$ 19,820us-gaap_ProfitLoss	$ 16,579us-gaap_ProfitLoss
Basic earnings per share	$ 0.55us-gaap_EarningsPerShareBasic	$ 0.47us-gaap_EarningsPerShareBasic
Diluted earnings per share	$ 0.55us-gaap_EarningsPerShareDiluted	$ 0.47us-gaap_EarningsPerShareDiluted
Weighted average number of shares – basic	35,769,190	35,063,671
Weighted average number of shares – diluted	36,244,695	35,592,027

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 25

-Paragraph 23

-URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e1043-128460