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Concentrations - Summary of Net Revenue from Various Products (Detail) (Product Concentration Risk, Revenue)
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3 Months Ended | 9 Months Ended | ||
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Sep. 30, 2014
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Sep. 30, 2013
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Sep. 30, 2014
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Sep. 30, 2013
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| Concentration Risk [Line Items] | ||||
| Percentage of net revenue | 100.00% | 100.00% | 100.00% | 100.00% |
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Laser systems
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| Concentration Risk [Line Items] | ||||
| Percentage of net revenue | 57.90% | 65.80% | 60.20% | 67.90% |
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Imaging systems
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| Concentration Risk [Line Items] | ||||
| Percentage of net revenue | 11.00% | 7.80% | 9.50% | 8.10% |
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Consumables and other
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| Concentration Risk [Line Items] | ||||
| Percentage of net revenue | 12.60% | 13.20% | 13.60% | 11.90% |
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Services
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| Concentration Risk [Line Items] | ||||
| Percentage of net revenue | 18.20% | 12.90% | 16.30% | 11.70% |
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License fees and royalties
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| Concentration Risk [Line Items] | ||||
| Percentage of net revenue | 0.30% | 0.30% | 0.40% | 0.40% |