| Revenue | — | — | — |
| Monitoring and related services | 4,293.48a | 4,179a | 4,053.05a |
| Security installation, product, and other | 604.97a | 473.83a | 328.86a |
| Total revenue | 4,898.45a | 4,652.82a | 4,381.9a |
| Cost of revenue (exclusive of depreciation and amortization shown separately below) | — | — | — |
| Monitoring and related services | -617.39a | -604.37a | -596.66a |
| Security installation, product, and other | -229.73a | -147.31a | -102.12a |
| Total cost of revenue | -847.11a | -751.68a | -698.78a |
| Selling, general, and administrative expenses | -1,476.35a | -1,347.74a | -1,348.28a |
| Depreciation and intangible asset amortization | -1,342.8a | -1,335.48a | -1,599.81a |
| Merger, restructuring, integration, and other | -24.12a | -38.96a | -9.94a |
| Operating income (loss) | 1,208.06a | 1,178.96a | 725.09a |
| Interest expense, net | -441.03a | -569.92a | -263.07a |
| Loss on extinguishment of debt | -4.8a | -16.62a | |
| Other income (expense) | 52.94a | 11.96a | -57.57a |
| Income (loss) from continuing operations before income taxes and equity in net earnings (losses) of equity method investee | 815.17a | 604.38a | 404.46a |
| Income tax benefit (expense) | -195.78a | -160.59a | -87.69a |
| Income (loss) from continuing operations before equity in net earnings (losses) of equity method investee | 619.39a | 443.8a | 316.77a |
| Equity in net earnings (losses) of equity method investee | | 6.57a | -4.6a |
| Income (loss) from continuing operations | 619.39a | 450.37a | 312.17a |
| Income (loss) from discontinued operations, net of tax | -118.34a | 12.64a | -179.5a |
| Net income (loss) | 501.05a | 463.01a | 132.66a |