Intangible Assets (Details 1) (USD $)
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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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Amortization expense related to intangible assets with definite lives | ||||
Total amortization | $ 1,689,000 | $ 2,065,000 | $ 5,364,000 | $ 6,122,000 |
Technology [Member]
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Amortization expense related to intangible assets with definite lives | ||||
Total amortization | 1,057,000 | 1,095,000 | 2,985,000 | 3,260,000 |
Customer related [Member]
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Amortization expense related to intangible assets with definite lives | ||||
Total amortization | 294,000 | 678,000 | 1,247,000 | 2,000,000 |
Internally developed software [Member]
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Amortization expense related to intangible assets with definite lives | ||||
Total amortization | 321,000 | 262,000 | 1,049,000 | 771,000 |
Patents [Member]
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Amortization expense related to intangible assets with definite lives | ||||
Total amortization | $ 17,000 | $ 30,000 | $ 83,000 | $ 91,000 |