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v3.3.1.900

Discontinued Operations - Additional Information (Detail) - USD ($) $ in Thousands |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Aug. 04, 2015 | Sep. 30, 2015 | Dec. 31, 2015 | Dec. 31, 2014
Telecommunications Operations [Member] |  |  |  |
Discontinued Operations [Line Items] |  |  |  |
Legal fees |  |  |  | $ 1,000
Legal fees, net of tax impact |  |  |  | $ 600
Fiber Optic Licensing Division [Member] |  |  |  |
Discontinued Operations [Line Items] |  |  |  |
Sales price of fiber optic licensing operations | $ 1,000,000 |  |  |
Net cash proceeds from sale of fiber optic licensing operations | $ 848,000 |  |  |
Gain on disposal of discontinued operations before taxes |  | $ 272,000 | $ 271,833 |
Tax amount from gain loss of disposal of discontinued operations |  | 101,000 |  |
Gain on sale, Net of tax |  | $ 171,000 |  |

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