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Severance, Restructuring and Acquisition Integration Activities - Summary of Severance Activity (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Sep. 27, 2015 | Jun. 28, 2015 | Mar. 29, 2015 | Dec. 31, 2014 | Sep. 28, 2014 | Jun. 29, 2014 | Mar. 30, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |
Severance, restructuring, and acquisition integration costs | $ 13,600 | $ 14,100 | $ 4,900 | $ 14,600 | $ 22,000 | $ 9,200 | $ 38,200 | $ 1,400 | $ 47,170 | $ 70,827 | $ 14,888
Grass Valley Restructuring Program [Member] |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |
Severance, restructuring, and acquisition integration costs |  |  |  |  |  |  |  |  | 25,400 |  |
Employee Severance [Member] | Productivity Improvement Program [Member] |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |
Beginning balance | 3,929 | 4,846 | 5,995 | 7,141 |  |  |  |  | 7,141 |  |
Severance, restructuring, and acquisition integration costs |  | 99 | 22 | 887 |  |  |  |  |  |  |
Cash payments | (831) | (987) | (1,268) | (1,455) |  |  |  |  |  |  |
Foreign currency translation | (64) | (29) | 97 | (408) |  |  |  |  |  |  |
Other adjustments | (818) |  |  | (170) |  |  |  |  |  |  |
Ending balance | 2,216 | 3,929 | 4,846 | 5,995 | 7,141 |  |  |  | 2,216 | 7,141 |
Employee Severance [Member] | Grass Valley Integration [Member] |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |
Beginning balance | 837 | 1,783 | 5,072 | 5,579 |  |  |  |  | 5,579 |  |
Severance, restructuring, and acquisition integration costs |  |  |  | 2,165 |  |  |  |  |  |  |
Cash payments | (397) | (946) | (1,709) | (2,370) |  |  |  |  |  |  |
Foreign currency translation | (27) |  | 10 | (302) |  |  |  |  |  |  |
Other adjustments |  |  | (1,590) |  |  |  |  |  |  |  |
Ending balance | 413 | 837 | $ 1,783 | $ 5,072 | $ 5,579 |  |  |  | 413 | $ 5,579 |
Employee Severance [Member] | Grass Valley Restructuring Program [Member] |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |
Beginning balance | 11,223 |  |  |  |  |  |  |  |  |  |
Severance, restructuring, and acquisition integration costs | 3,960 | 11,978 |  |  |  |  |  |  |  |  |
Cash payments | (2,979) | (755) |  |  |  |  |  |  |  |  |
Foreign currency translation | (119) |  |  |  |  |  |  |  |  |  |
Ending balance | 12,085 | $ 11,223 |  |  |  |  |  |  | 12,085 |  |
Employee Severance [Member] | Industrial Restructuring Program [Member] |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |
Severance, restructuring, and acquisition integration costs | 2,728 |  |  |  |  |  |  |  |  |  |
Cash payments | (282) |  |  |  |  |  |  |  |  |  |
Foreign currency translation | 15 |  |  |  |  |  |  |  |  |  |
Other adjustments | 182 |  |  |  |  |  |  |  |  |  |
Ending balance | $ 2,643 |  |  |  |  |  |  |  | $ 2,643 |  |

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