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Equipment and Leasehold Improvements | 12 Months Ended
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Dec. 31, 2011
Equipment and Leasehold Improvements |
| (6) | Equipment and Leasehold Improvements
|  | December 31, |
|  | 2011 |  |  | 2010 |
Equipment |  | $ | 35,160 |  |  | $ | 26,778 |
Leasehold improvements |  |  | 2,265 |  |  |  | 2,107 |
|  |  | 37,425 |  |  |  | 28,885 |
Less accumulated depreciation and amortization |  |  | 22,900 |  |  |  | 17,678 |
|  | $ | 14,525 |  |  | $ | 11,207 |
Depreciation and amortization expense was $6.0 million, $3.5 million and $4.3 million for 2011, 2010 and 2009, respectively.

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- Definition Investment in Equipment and Leases [Text Block] + References No definition available. + Details
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Namespace Prefix: | ipar_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration