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Commitments and Contingencies (Details) (USD $)
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12 Months Ended | ||
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Dec. 31, 2013
patent
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Dec. 31, 2012
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Dec. 31, 2011
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| Commitments and Contingencies Disclosure [Abstract] | |||
| Operating lease commitments | $ 31,905,000 | ||
| Rent expense | 9,800,000 | 8,700,000 | 8,200,000 |
| Sublease rental income | 700,000 | 800,000 | 700,000 |
| Open purchase orders and other contractual obligations | 37,794,000 | ||
| Other contract commitments | $ 9,946,000 | ||
| Number of patents involved in litigation | 2 | ||
| X | ||||||||||
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- Definition
Number of Patents Involved in Litigation No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of revenue recognized for the period under subleasing arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. No definition available.
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| X | ||||||||||
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- Definition
Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. No definition available.
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