Goodwill - Schedule of Goodwill (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Goodwill [Roll Forward] | ||
| Goodwill, Beginning Balance | $ 563,549 | $ 563,549 |
| Period activity | 0 | 0 |
| Goodwill, Ending Balance | 563,549 | 563,549 |
| MONI | ||
| Goodwill [Roll Forward] | ||
| Goodwill, Beginning Balance | 527,502 | 527,502 |
| Period activity | 0 | 0 |
| Goodwill, Ending Balance | 527,502 | 527,502 |
| LiveWatch | ||
| Goodwill [Roll Forward] | ||
| Goodwill, Beginning Balance | 36,047 | 36,047 |
| Period activity | 0 | 0 |
| Goodwill, Ending Balance | $ 36,047 | $ 36,047 |
| X | ||||||||||
- 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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