| Intangible Assets Other Than Goodwill |
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2013
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2012
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(in thousands)
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Gross
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Accumulated Amortization
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Net
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Gross
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Accumulated Amortization
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Net
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Useful Life (in years)
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Intangible assets with finite lives:
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Licenses
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$
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5,875
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$
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(5,875
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)
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$
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—
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$
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5,875
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$
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(5,875
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)
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$
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—
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Patent costs
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27,398
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(14,100
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)
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13,298
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27,635
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(14,047
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)
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13,588
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6 - 7
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Acquired technology
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26,174
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(12,190
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)
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13,984
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26,262
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(11,852
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)
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14,410
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5 - 10
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Internally developed software
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17,847
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(11,783
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)
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6,064
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17,847
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(11,424
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)
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6,423
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5
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Customer relationships
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70,618
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(9,483
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)
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61,135
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60,329
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(7,754
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)
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52,575
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5 - 13
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Non-compete agreements
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14,294
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(4,366
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)
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9,928
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14,051
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(3,836
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)
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10,215
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3 - 11
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Trade names
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7,929
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(1,032
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)
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6,897
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5,814
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(723
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)
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5,091
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2 - 10
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Other
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11,424
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(3,348
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)
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8,076
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6,356
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(3,051
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)
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3,305
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<1 - 7
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Intangibles with indefinite lives:
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Trademarks
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2,110
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—
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2,110
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2,770
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—
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2,770
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N/A
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Total intangible assets
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$
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183,669
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$
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(62,177
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)
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$
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121,492
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$
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166,939
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$
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(58,562
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)
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$
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108,377
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<1 - 13
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