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Segments and Geographic Information - Summary of Net Sales and Operating Income, Depreciation and Amortization by Reportable Segment (Detail) (USD $)
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3 Months Ended |
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Mar. 31, 2015
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Mar. 31, 2014
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| Segment Reporting Information [Line Items] |
|
|
| Net sales |
$ 825,400,000 |
$ 935,036,000 |
| Operating income |
93,140,000 |
146,535,000 |
| Depreciation |
11,600,000 |
11,700,000 |
| Amortization |
44,786,000 |
44,298,000 |
| Inter-Segment Eliminations [Member] |
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| Segment Reporting Information [Line Items] |
|
|
| Net sales |
(200,000) |
(1,200,000) |
| Wireless [Member] | Operating Segments [Member] |
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|
| Segment Reporting Information [Line Items] |
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| Net sales |
496,300,000 |
627,200,000 |
| Operating income |
64,400,000 |
127,600,000 |
| Depreciation |
7,200,000 |
7,000,000 |
| Amortization |
23,100,000 |
22,500,000 |
| Enterprise [Member] | Operating Segments [Member] |
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|
| Segment Reporting Information [Line Items] |
|
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| Net sales |
211,300,000 |
201,500,000 |
| Operating income |
26,900,000 |
22,600,000 |
| Depreciation |
2,600,000 |
2,700,000 |
| Amortization |
17,400,000 |
17,400,000 |
| Broadband [Member] | Operating Segments [Member] |
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| Segment Reporting Information [Line Items] |
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| Net sales |
118,000,000 |
107,500,000 |
| Operating income |
1,800,000 |
(3,700,000) |
| Depreciation |
1,800,000 |
2,000,000 |
| Amortization |
$ 4,300,000 |
$ 4,400,000 |