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Commitments and Contingencies (Tables)
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9 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Sep. 30, 2012
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| Commitments and Contingencies Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Minimum rental payments under operating leases | At December 31, 2011, we were obligated to make minimum rental payments under operating leases which are as follows. There have been no material changes to our minimum rental obligations subsequent to December 31, 2011.
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| Changes in product warranty accrual | We warrant numerous products, the terms of which vary widely. In general, we warrant products against defect and specific non-performance. The table below provides the changes in our product warranty accrual.
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