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Goodwill and Intangible Assets (Details 2) (USD $) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Jun. 30, 2014
Amortizable assets: |  |  |  |  |
Gross Carrying Value | $ 62,932,000 us-gaap_FiniteLivedIntangibleAssetsGross |  | $ 62,932,000 us-gaap_FiniteLivedIntangibleAssetsGross |  | $ 59,747,000 us-gaap_FiniteLivedIntangibleAssetsGross
Accumulated Amortization | 26,617,000 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization |  | 26,617,000 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization |  | 28,201,000 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Intangibles Net | 36,315,000 us-gaap_FiniteLivedIntangibleAssetsNet |  | 36,315,000 us-gaap_FiniteLivedIntangibleAssetsNet |  | 31,546,000 us-gaap_FiniteLivedIntangibleAssetsNet
Total intangible assets |  |  |  |  |
Gross Carrying Value | 75,482,000 us-gaap_IntangibleAssetsGrossExcludingGoodwill |  | 75,482,000 us-gaap_IntangibleAssetsGrossExcludingGoodwill |  | 71,816,000 us-gaap_IntangibleAssetsGrossExcludingGoodwill
Intangibles Net | 48,865,000 us-gaap_IntangibleAssetsNetExcludingGoodwill |  | 48,865,000 us-gaap_IntangibleAssetsNetExcludingGoodwill |  | 43,615,000 us-gaap_IntangibleAssetsNetExcludingGoodwill
Amortization expense | 1,100,000 us-gaap_AmortizationOfIntangibleAssets | 1,200,000 us-gaap_AmortizationOfIntangibleAssets | 1,900,000 us-gaap_AmortizationOfIntangibleAssets | 2,600,000 us-gaap_AmortizationOfIntangibleAssets |
Estimated future amortization expense |  |  |  |  |
2015 (remaining 6 months) | 1,970,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear |  | 1,970,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear |  |
2016 | 3,975,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths |  | 3,975,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths |  |
2017 | 4,327,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo |  | 4,327,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo |  |
2018 | 4,363,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree |  | 4,363,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree |  |
2019 | 3,790,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour |  | 3,790,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour |  |
2020 | 3,350,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive |  | 3,350,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive |  |
2021 and thereafter, including assets that have not yet begun to be amortized | 14,540,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive |  | 14,540,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive |  |
Intangibles Net | 36,315,000 us-gaap_FiniteLivedIntangibleAssetsNet |  | 36,315,000 us-gaap_FiniteLivedIntangibleAssetsNet |  | 31,546,000 us-gaap_FiniteLivedIntangibleAssetsNet
Trademarks |  |  |  |  |
Non-amortizable assets: |  |  |  |  |
Gross Carrying Value | 12,550,000 us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TrademarksMember |  | 12,550,000 us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TrademarksMember |  | 12,069,000 us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TrademarksMember
Software development costs |  |  |  |  |
Intangible assets |  |  |  |  |
Weighted Average Lives |  |  | 9 years |  |
Amortizable assets: |  |  |  |  |
Gross Carrying Value | 23,024,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_SoftwareAndSoftwareDevelopmentCostsMember |  | 23,024,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_SoftwareAndSoftwareDevelopmentCostsMember |  | 21,165,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_SoftwareAndSoftwareDevelopmentCostsMember
Accumulated Amortization | 7,105,000 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_SoftwareAndSoftwareDevelopmentCostsMember |  | 7,105,000 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_SoftwareAndSoftwareDevelopmentCostsMember |  | 6,716,000 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_SoftwareAndSoftwareDevelopmentCostsMember
Intangibles Net | 15,919,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_SoftwareAndSoftwareDevelopmentCostsMember |  | 15,919,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_SoftwareAndSoftwareDevelopmentCostsMember |  | 14,449,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_SoftwareAndSoftwareDevelopmentCostsMember
Estimated future amortization expense |  |  |  |  |
Intangibles Net | 15,919,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_SoftwareAndSoftwareDevelopmentCostsMember |  | 15,919,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_SoftwareAndSoftwareDevelopmentCostsMember |  | 14,449,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_SoftwareAndSoftwareDevelopmentCostsMember
Capitalized software development costs | 800,000 us-gaap_CapitalizedComputerSoftwareAdditions / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_SoftwareAndSoftwareDevelopmentCostsMember | 500,000 us-gaap_CapitalizedComputerSoftwareAdditions / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_SoftwareAndSoftwareDevelopmentCostsMember | 1,400,000 us-gaap_CapitalizedComputerSoftwareAdditions / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_SoftwareAndSoftwareDevelopmentCostsMember | 1,800,000 us-gaap_CapitalizedComputerSoftwareAdditions / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_SoftwareAndSoftwareDevelopmentCostsMember |
Patents |  |  |  |  |
Intangible assets |  |  |  |  |
Weighted Average Lives |  |  | 17 years |  |
Amortizable assets: |  |  |  |  |
Gross Carrying Value | 6,938,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember |  | 6,938,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember |  | 6,566,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember
Accumulated Amortization | 873,000 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember |  | 873,000 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember |  | 765,000 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember
Intangibles Net | 6,065,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember |  | 6,065,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember |  | 5,801,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember
Estimated future amortization expense |  |  |  |  |
Intangibles Net | 6,065,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember |  | 6,065,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember |  | 5,801,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember
Core technology |  |  |  |  |
Intangible assets |  |  |  |  |
Weighted Average Lives |  |  | 10 years |  |
Amortizable assets: |  |  |  |  |
Gross Carrying Value | 2,094,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CoreTechnologyMember |  | 2,094,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CoreTechnologyMember |  | 2,289,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CoreTechnologyMember
Accumulated Amortization | 2,072,000 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CoreTechnologyMember |  | 2,072,000 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CoreTechnologyMember |  | 2,150,000 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CoreTechnologyMember
Intangibles Net | 22,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CoreTechnologyMember |  | 22,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CoreTechnologyMember |  | 139,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CoreTechnologyMember
Estimated future amortization expense |  |  |  |  |
Intangibles Net | 22,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CoreTechnologyMember |  | 22,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CoreTechnologyMember |  | 139,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CoreTechnologyMember
Developed technology |  |  |  |  |
Intangible assets |  |  |  |  |
Weighted Average Lives |  |  | 10 years |  |
Amortizable assets: |  |  |  |  |
Gross Carrying Value | 20,650,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember |  | 20,650,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember |  | 18,308,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember
Accumulated Amortization | 12,187,000 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember |  | 12,187,000 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember |  | 11,559,000 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember
Intangibles Net | 8,463,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember |  | 8,463,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember |  | 6,749,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember
Estimated future amortization expense |  |  |  |  |
Intangibles Net | 8,463,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember |  | 8,463,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember |  | 6,749,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember
Customer relationships/backlog |  |  |  |  |
Intangible assets |  |  |  |  |
Weighted Average Lives |  |  | 7 years |  |
Amortizable assets: |  |  |  |  |
Gross Carrying Value | 10,226,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CustomerRelationshipsOrderOrProductionBacklogMember |  | 10,226,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CustomerRelationshipsOrderOrProductionBacklogMember |  | 11,419,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CustomerRelationshipsOrderOrProductionBacklogMember
Accumulated Amortization | 4,380,000 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CustomerRelationshipsOrderOrProductionBacklogMember |  | 4,380,000 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CustomerRelationshipsOrderOrProductionBacklogMember |  | 7,011,000 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CustomerRelationshipsOrderOrProductionBacklogMember
Intangibles Net | 5,846,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CustomerRelationshipsOrderOrProductionBacklogMember |  | 5,846,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CustomerRelationshipsOrderOrProductionBacklogMember |  | 4,408,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CustomerRelationshipsOrderOrProductionBacklogMember
Estimated future amortization expense |  |  |  |  |
Intangibles Net | $ 5,846,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CustomerRelationshipsOrderOrProductionBacklogMember |  | $ 5,846,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CustomerRelationshipsOrderOrProductionBacklogMember |  | $ 4,408,000 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = osis_CustomerRelationshipsOrderOrProductionBacklogMember

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