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Acquisitions - Intangible Assets Related to Acquisition (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013
PPC Broadband Inc [Member] |
Acquired Indefinite-lived Intangible Assets [Line Items] |
Intangible assets subject to amortization | $ 132,500
Intangible assets not subject to amortization | 309,091
Total intangible assets | 441,591
Weighted average amortization period | 11 years 2 months 12 days
PPC Broadband Inc [Member] | Goodwill [Member] |
Acquired Indefinite-lived Intangible Assets [Line Items] |
Intangible assets not subject to amortization | 277,091
PPC Broadband Inc [Member] | In-process research and development [Member] |
Acquired Indefinite-lived Intangible Assets [Line Items] |
Intangible assets not subject to amortization | 5,000
PPC Broadband Inc [Member] | Trademarks [Member] |
Acquired Indefinite-lived Intangible Assets [Line Items] |
Intangible assets not subject to amortization | 27,000
PPC Broadband Inc [Member] | Developed technologies [Member] |
Acquired Indefinite-lived Intangible Assets [Line Items] |
Intangible assets subject to amortization | 76,000
Amortization period | 5 years
PPC Broadband Inc [Member] | Customer relationships [Member] |
Acquired Indefinite-lived Intangible Assets [Line Items] |
Intangible assets subject to amortization | 55,000
Amortization period | 20 years
PPC Broadband Inc [Member] | Backlog [Member] |
Acquired Indefinite-lived Intangible Assets [Line Items] |
Intangible assets subject to amortization | 1,500
Amortization period | 6 months
Miranda Technologies Inc [Member] |
Acquired Indefinite-lived Intangible Assets [Line Items] |
Intangible assets subject to amortization | 117,524
Intangible assets not subject to amortization | 203,673
Total intangible assets | 321,197
Weighted average amortization period | 9 years 10 months 24 days
Miranda Technologies Inc [Member] | Goodwill [Member] |
Acquired Indefinite-lived Intangible Assets [Line Items] |
Intangible assets not subject to amortization | 161,206
Miranda Technologies Inc [Member] | In-process research and development [Member] |
Acquired Indefinite-lived Intangible Assets [Line Items] |
Intangible assets not subject to amortization | 6,913
Miranda Technologies Inc [Member] | Trademarks [Member] |
Acquired Indefinite-lived Intangible Assets [Line Items] |
Intangible assets not subject to amortization | 35,554
Miranda Technologies Inc [Member] | Developed technologies [Member] |
Acquired Indefinite-lived Intangible Assets [Line Items] |
Intangible assets subject to amortization | 69,132
Amortization period | 4 years
Miranda Technologies Inc [Member] | Customer relationships [Member] |
Acquired Indefinite-lived Intangible Assets [Line Items] |
Intangible assets subject to amortization | 44,442
Amortization period | 20 years
Miranda Technologies Inc [Member] | Backlog [Member] |
Acquired Indefinite-lived Intangible Assets [Line Items] |
Intangible assets subject to amortization | $ 3,950
Amortization period | 1 year

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 + Details
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- Definition Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 + Details
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- Definition The amount of identifiable intangible assets recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=25498275&loc=d3e2207-128464 + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The current portion of nonphysical assets, excluding financial assets, if these assets are classified into the current and noncurrent portions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1107-107759 + Details
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