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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Net revenues:
Products	$ 155,915us-gaap_SalesRevenueGoodsNet	$ 139,411us-gaap_SalesRevenueGoodsNet	$ 503,224us-gaap_SalesRevenueGoodsNet	$ 456,861us-gaap_SalesRevenueGoodsNet
Services	59,460us-gaap_SalesRevenueServicesNet	64,545us-gaap_SalesRevenueServicesNet	188,377us-gaap_SalesRevenueServicesNet	189,777us-gaap_SalesRevenueServicesNet
Total net revenues	215,375us-gaap_Revenues	203,956us-gaap_Revenues	691,601us-gaap_Revenues	646,638us-gaap_Revenues
Cost of goods sold:
Product	107,019us-gaap_CostOfGoodsSold	95,620us-gaap_CostOfGoodsSold	340,809us-gaap_CostOfGoodsSold	317,994us-gaap_CostOfGoodsSold
Services	35,752us-gaap_CostOfServices	37,829us-gaap_CostOfServices	114,672us-gaap_CostOfServices	109,252us-gaap_CostOfServices
Total cost of goods sold	142,771us-gaap_CostOfGoodsAndServicesSold	133,449us-gaap_CostOfGoodsAndServicesSold	455,481us-gaap_CostOfGoodsAndServicesSold	427,246us-gaap_CostOfGoodsAndServicesSold
Gross profit	72,604us-gaap_GrossProfit	70,507us-gaap_GrossProfit	236,120us-gaap_GrossProfit	219,392us-gaap_GrossProfit
Operating expenses:
Selling, general and administrative	37,970us-gaap_SellingGeneralAndAdministrativeExpense	39,399us-gaap_SellingGeneralAndAdministrativeExpense	130,046us-gaap_SellingGeneralAndAdministrativeExpense	127,169us-gaap_SellingGeneralAndAdministrativeExpense
Research and development	12,559us-gaap_ResearchAndDevelopmentExpense	10,579us-gaap_ResearchAndDevelopmentExpense	38,469us-gaap_ResearchAndDevelopmentExpense	32,774us-gaap_ResearchAndDevelopmentExpense
Restructuring and other charges	3,620us-gaap_RestructuringCharges	2,507us-gaap_RestructuringCharges	6,425us-gaap_RestructuringCharges	8,925us-gaap_RestructuringCharges
Total operating expenses	54,149us-gaap_OperatingExpenses	52,485us-gaap_OperatingExpenses	174,940us-gaap_OperatingExpenses	168,868us-gaap_OperatingExpenses
Income from operations	18,455us-gaap_OperatingIncomeLoss	18,022us-gaap_OperatingIncomeLoss	61,180us-gaap_OperatingIncomeLoss	50,524us-gaap_OperatingIncomeLoss
Interest and other expense, net	(812)us-gaap_InterestExpense	(1,370)us-gaap_InterestExpense	(2,508)us-gaap_InterestExpense	(4,343)us-gaap_InterestExpense
Income before income taxes	17,643us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	16,652us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	58,672us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	46,181us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Provision for income taxes	4,415us-gaap_IncomeTaxExpenseBenefit	11,851us-gaap_IncomeTaxExpenseBenefit	15,954us-gaap_IncomeTaxExpenseBenefit	20,413us-gaap_IncomeTaxExpenseBenefit
Net income	$ 13,228us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic	$ 4,801us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic	$ 42,718us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic	$ 25,768us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
Net income per share:
Basic (in dollars per share)	$ 0.67us-gaap_EarningsPerShareBasic	$ 0.24us-gaap_EarningsPerShareBasic	$ 2.16us-gaap_EarningsPerShareBasic	$ 1.29us-gaap_EarningsPerShareBasic
Diluted (in dollars per share)	$ 0.64us-gaap_EarningsPerShareDiluted	$ 0.23us-gaap_EarningsPerShareDiluted	$ 2.08us-gaap_EarningsPerShareDiluted	$ 1.25us-gaap_EarningsPerShareDiluted
Shares used in per share calculation:
Basic (in shares)	19,801us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	19,936us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	19,810us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	19,956us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Diluted (in shares)	20,529us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	20,548us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	20,515us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	20,585us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding

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-URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1505-109256

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 45

-Paragraph 10

-URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1448-109256



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Weighted-Average Number of Common Shares Outstanding

-URI http://asc.fasb.org/extlink&oid=6528421

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