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CONCENTRATIONS - Additional Information (Detail)
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9 Months Ended | 12 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Sep. 30, 2012
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Dec. 31, 2011
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Sep. 30, 2012
HSIC worldwide [Member]
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Sep. 30, 2011
HSIC worldwide [Member]
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Sep. 30, 2012
HSIC worldwide [Member]
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Sep. 30, 2011
HSIC worldwide [Member]
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Sep. 30, 2012
Waterlase systems [Member]
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Sep. 30, 2011
Waterlase systems [Member]
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Sep. 30, 2012
Waterlase systems [Member]
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Sep. 30, 2011
Waterlase systems [Member]
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Sep. 30, 2012
Diode systems [Member]
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Sep. 30, 2011
Diode systems [Member]
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Sep. 30, 2012
Diode systems [Member]
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Sep. 30, 2011
Diode systems [Member]
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Sep. 30, 2012
Consumable services and warranty contracts [Member]
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Sep. 30, 2011
Consumable services and warranty contracts [Member]
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Sep. 30, 2012
Consumable services and warranty contracts [Member]
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Sep. 30, 2011
Consumable services and warranty contracts [Member]
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Sep. 30, 2012
Imaging system [Member]
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Sep. 30, 2011
Imaging system [Member]
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Sep. 30, 2012
Imaging system [Member]
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Sep. 30, 2011
Imaging system [Member]
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| Concentrations [Line Items] | ||||||||||||||||||||||
| Percentage of net revenue | 67.00% | 63.00% | 64.00% | 57.00% | 7.00% | 17.00% | 9.00% | 21.00% | 21.00% | 19.00% | 22.00% | 20.00% | 5.00% | 1.00% | 5.00% | 0.00% | ||||||
| Percentage of sales concentration to one customer | 5.00% | 14.00% | 4.00% | 24.00% | ||||||||||||||||||
| Percentage of sales concentration generated by non-cancellable prepaid purchase orders | 49.00% | 68.00% | ||||||||||||||||||||
| Maximum account receivable with individual customer | Less than 10% | Less than 10% | ||||||||||||||||||||