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Intangible Assets (Tables) | 6 Months Ended
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Jun. 30, 2014
Intangible Assets [Abstract] |
Intangible Assets Other Than Goodwill |
| 2014 |  | 2013 |  |  |  |
(in thousands) | Gross |  | Accumulated Amortization |  | Net |  | Gross |  | Accumulated Amortization |  | Net |  | Useful Life (in years) |  | Weighted Average Useful Life Remaining (in years)
Intangible assets with finite lives: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Licenses | $ | 5,875 |  | $ | (5,875) |  | $ | — |  | $ | 5,875 |  | $ | (5,875) |  | $ | — |  |  |  |
Patent costs |  | 22,211 |  |  | (7,195) |  |  | 15,016 |  |  | 21,545 |  |  | (5,960) |  |  | 15,585 |  | 6 - 7 |  | 3
Acquired technology |  | 44,591 |  |  | (15,410) |  |  | 29,181 |  |  | 30,095 |  |  | (13,615) |  |  | 16,480 |  | 5 - 10 |  | 5
Internally developed software |  | 17,862 |  |  | (13,583) |  |  | 4,279 |  |  | 18,097 |  |  | (12,863) |  |  | 5,234 |  | 5 |  | <1
Customer relationships |  | 113,067 |  |  | (28,021) |  |  | 85,046 |  |  | 95,793 |  |  | (18,283) |  |  | 77,510 |  | 5 - 13 |  | 5
Non-compete agreements |  | 21,010 |  |  | (8,758) |  |  | 12,252 |  |  | 16,848 |  |  | (6,666) |  |  | 10,182 |  | 3 - 11 |  | 3
Trade names |  | 10,708 |  |  | (3,459) |  |  | 7,249 |  |  | 9,302 |  |  | (2,211) |  |  | 7,091 |  | 2 - 10 |  | 3
Other |  | 23,668 |  |  | (4,818) |  |  | 18,850 |  |  | 11,598 |  |  | (4,081) |  |  | 7,517 |  | <1 - 7 |  | 2
Intangibles with indefinite lives: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trademarks |  | 5,910 |  |  | — |  |  | 5,910 |  |  | 2,110 |  |  | — |  |  | 2,110 |  | N/A |  | N/A
Total intangible assets | $ | 264,902 |  | $ | (87,119) |  | $ | 177,783 |  | $ | 211,263 |  | $ | (69,554) |  | $ | 141,709 |  | <1 - 13 |  | 4

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- Definition Schedule of Finite And Indefinite-Lived Intangible Assets [Table Text Block] + References No definition available. + Details
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- Details
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