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Operating Segments and Geographic Information - Operating Segment Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Oct. 02, 2016 | Jul. 03, 2016 | Apr. 03, 2016 | Dec. 31, 2015 | Sep. 27, 2015 | Jun. 28, 2015 | Mar. 29, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Depreciation expense |  |  |  |  |  |  |  |  | $ 47,200 | $ 46,600 | $ 43,700
Amortization of intangibles |  |  |  |  |  |  |  |  | 98,385 | 103,791 | 58,426
Severance, restructuring, and acquisition integration costs | $ 11,700 | $ 12,800 | $ 5,900 | $ 8,400 | $ 13,600 | $ 14,100 | $ 4,900 | $ 14,600 | 38,770 | 47,170 | 70,827
Patent settlement | (10,300) |  |  |  |  |  |  |  |  |  |
Acquisition of property, plant and equipment |  |  |  |  |  |  |  |  | 53,974 | 54,969 | 45,459
Segment assets | 3,806,803 |  |  |  | 3,290,602 |  |  |  | 3,806,803 | 3,290,602 | 3,232,202
Broadcast Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Severance, restructuring, and acquisition integration costs |  |  |  |  |  |  |  |  | 10,414 | 39,078 | 48,557
Enterprise Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Severance, restructuring, and acquisition integration costs |  |  |  |  |  |  |  |  | 11,962 | 723 | 3,318
Industrial Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Severance, restructuring, and acquisition integration costs |  |  |  |  |  |  |  |  | 9,923 | 6,228 | 11,953
Network Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Severance, restructuring, and acquisition integration costs |  |  |  |  |  |  |  |  | 6,471 | 1,141 | 6,999
Reportable Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenues |  |  |  |  |  |  |  |  | 2,357,805 | 2,360,583 | 2,320,219
Affiliate revenues |  |  |  |  |  |  |  |  | 8,125 | 7,929 | 12,269
Segment EBITDA |  |  |  |  |  |  |  |  | 433,189 | 401,666 | 360,342
Depreciation expense |  |  |  |  |  |  |  |  | 47,208 | 46,551 | 43,736
Amortization of intangibles |  |  |  |  |  |  |  |  | 98,385 | 103,791 | 58,426
Severance, restructuring, and acquisition integration costs |  |  |  |  |  |  |  |  | 38,770 | 47,170 | 70,827
Purchase accounting effects of acquisitions |  |  |  |  |  |  |  |  | (2,079) | 9,747 | 12,540
Deferred gross profit adjustments |  |  |  |  |  |  |  |  | (6,687) | (52,876) | (10,777)
Patent settlement |  |  |  |  |  |  |  |  | (5,554) | 0 | 0
Acquisition of property, plant and equipment |  |  |  |  |  |  |  |  | 53,582 | 53,572 | 42,442
Segment assets | 913,998 |  |  |  | 934,280 |  |  |  | 913,998 | 934,280 | 960,782
Reportable Segment [Member] | Broadcast Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenues |  |  |  |  |  |  |  |  | 769,753 | 739,970 | 757,767
Affiliate revenues |  |  |  |  |  |  |  |  | 744 | 916 | 821
Segment EBITDA |  |  |  |  |  |  |  |  | 137,870 | 113,638 | 116,966
Depreciation expense |  |  |  |  |  |  |  |  | 16,229 | 16,295 | 15,854
Amortization of intangibles |  |  |  |  |  |  |  |  | 47,248 | 49,812 | 49,562
Severance, restructuring, and acquisition integration costs |  |  |  |  |  |  |  |  | 10,414 | 39,078 | 48,440
Purchase accounting effects of acquisitions |  |  |  |  |  |  |  |  | (2,991) | 132 | 8,574
Deferred gross profit adjustments |  |  |  |  |  |  |  |  | (1,774) | (2,446) | (10,777)
Patent settlement |  |  |  |  |  |  |  |  | (5,554) | 0 | 0
Acquisition of property, plant and equipment |  |  |  |  |  |  |  |  | 15,713 | 27,365 | 17,091
Segment assets | 325,396 |  |  |  | 346,095 |  |  |  | 325,396 | 346,095 | 378,024
Reportable Segment [Member] | Enterprise Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenues |  |  |  |  |  |  |  |  | 603,188 | 605,910 | 626,614
Affiliate revenues |  |  |  |  |  |  |  |  | 5,977 | 5,322 | 8,467
Segment EBITDA |  |  |  |  |  |  |  |  | 101,298 | 100,214 | 89,352
Depreciation expense |  |  |  |  |  |  |  |  | 13,226 | 12,591 | 14,443
Amortization of intangibles |  |  |  |  |  |  |  |  | 1,718 | 1,720 | 1,827
Severance, restructuring, and acquisition integration costs |  |  |  |  |  |  |  |  | 11,962 | 723 | 3,435
Purchase accounting effects of acquisitions |  |  |  |  |  |  |  |  | 912 | 52 | 608
Acquisition of property, plant and equipment |  |  |  |  |  |  |  |  | 22,679 | 10,323 | 13,395
Segment assets | 246,564 |  |  |  | 238,400 |  |  |  | 246,564 | 238,400 | 259,344
Reportable Segment [Member] | Industrial Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenues |  |  |  |  |  |  |  |  | 585,476 | 603,350 | 682,374
Affiliate revenues |  |  |  |  |  |  |  |  | 1,325 | 1,613 | 2,927
Segment EBITDA |  |  |  |  |  |  |  |  | 101,248 | 99,941 | 106,097
Depreciation expense |  |  |  |  |  |  |  |  | 11,038 | 11,235 | 11,145
Amortization of intangibles |  |  |  |  |  |  |  |  | 2,394 | 3,154 | 1,236
Severance, restructuring, and acquisition integration costs |  |  |  |  |  |  |  |  | 9,923 | 6,228 | 11,953
Purchase accounting effects of acquisitions |  |  |  |  |  |  |  |  | 0 | 334 | 1,328
Acquisition of property, plant and equipment |  |  |  |  |  |  |  |  | 10,486 | 8,836 | 10,053
Segment assets | 226,306 |  |  |  | 231,265 |  |  |  | 226,306 | 231,265 | 255,997
Reportable Segment [Member] | Network Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment revenues |  |  |  |  |  |  |  |  | 399,388 | 411,353 | 253,464
Affiliate revenues |  |  |  |  |  |  |  |  | 79 | 78 | 54
Segment EBITDA |  |  |  |  |  |  |  |  | 92,773 | 87,873 | 47,927
Depreciation expense |  |  |  |  |  |  |  |  | 6,715 | 6,430 | 2,294
Amortization of intangibles |  |  |  |  |  |  |  |  | 47,025 | 49,105 | 5,801
Severance, restructuring, and acquisition integration costs |  |  |  |  |  |  |  |  | 6,471 | 1,141 | 6,999
Purchase accounting effects of acquisitions |  |  |  |  |  |  |  |  | 0 | 9,229 | 2,030
Deferred gross profit adjustments |  |  |  |  |  |  |  |  | 4,913 | 50,430 | 0
Acquisition of property, plant and equipment |  |  |  |  |  |  |  |  | 4,704 | 7,048 | 1,903
Segment assets | $ 115,732 |  |  |  | $ 118,520 |  |  |  | $ 115,732 | $ 118,520 | $ 67,417

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