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Acquisitions - Additional Information (Detail) (USD $) |  |  |  | 0 Months Ended |  | 0 Months Ended |  |  | 12 Months Ended | 0 Months Ended |  | 0 Months Ended |
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 10, 2012 PPC Broadband Inc [Member] | Dec. 31, 2013 PPC Broadband Inc [Member] | Jul. 30, 2012 Miranda Technologies Inc [Member] | Jul. 27, 2012 Miranda Technologies Inc [Member] | Jul. 27, 2013 Miranda Technologies Inc [Member] | Dec. 31, 2011 Miranda Technologies Inc [Member] | Dec. 31, 2011 Miranda Technologies Inc [Member] Sales Backlog [Member] | Aug. 31, 2011 Byres Security, Inc. [Member] | Jan. 25, 2013 Softel Limited [Member] | Jan. 07, 2011 ICM Corp. [Member] | Dec. 31, 2013 ICM Corp. [Member] | Apr. 01, 2011 Poliron Cabos Electricos Especiais Ltda [Member] | Dec. 31, 2011 Series of individually immaterial business acquisitions [Member]
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition price/cash paid at closing |  |  |  | $ 522,400,000 |  | $ 9,900,000 | $ 364,800,000 |  |  |  | $ 7,200,000 | $ 9,100,000 | $ 21,800,000 |  | $ 28,700,000 |
Percentage of outstanding shares acquired |  |  |  |  | 100.00% | 2.63% | 97.37% |  |  |  |  |  |  | 100.00% |  |
Fair value of acquired receivables |  |  |  |  | 26,600,000 |  | 27,600,000 |  |  |  |  |  |  |  |  |
Acquired receivable, gross contractual amount |  |  |  |  | 27,700,000 |  | 28,300,000 |  |  |  |  |  |  |  |  |
Amount of acquired receivables not expected to be collected |  |  |  |  | 1,100,000 |  | 700,000 |  |  |  |  |  |  |  |  |
Goodwill acquired |  |  |  |  | 277,100,000 |  |  |  |  |  |  |  |  |  |  |
Inventory cost step-up |  |  |  |  |  |  |  |  | 19,200,000 |  |  |  |  |  |  |
Amortization of intangible assets |  |  |  |  |  |  |  |  |  | 6,700,000 |  |  |  |  |  |
Transaction costs |  |  |  |  |  |  |  |  | 3,500,000 |  |  |  |  |  |  |
Goodwill | 773,048,000 | 778,708,000 | 336,591,000 | 277,091,000 |  |  |  | 161,206,000 |  |  |  |  |  |  |  | 27,800,000
Business acquisition purchase price allocation intangible asset |  |  |  | $ 164,500,000 |  |  |  | $ 159,991,000 |  |  |  |  |  |  |  | $ 21,300,000

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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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- Definition For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the best estimate at the acquisition date of the contractual cash flows not expected to be collected, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables. + 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 (b)(3) -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 + Details
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- Definition For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the fair value of the receivables acquired, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables. + 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 (b)(1) -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 + Details
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- Definition For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the gross contractual amounts receivable, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables. + 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 (b)(2) -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 + Details
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- Definition Amount of intangible assets, excluding goodwill, 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 Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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