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Segment Reporting (Details) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2018 USD ($) segment | Mar. 31, 2017 USD ($) | Dec. 31, 2017 USD ($)
Segment Reporting [Abstract] |  |  |
Number of operating segments | segment | 4 |  |
Number of reportable segments | segment | 3 |  |
Revenues: |  |  |
Rental income | $ 173,728 | $ 166,443 |
Residents fees and services | 102,087 | 98,118 |
Total revenues | 275,815 | 264,561 |
Expenses: |  |  |
Property operating expenses | 108,143 | 101,057 |
Depreciation and amortization | 70,339 | 73,175 |
General and administrative | 25,118 | 15,083 |
Acquisition and certain other transaction related costs | 20 | 292 |
Total expenses | 203,620 | 189,607 |
Operating income | 72,195 | 74,954 |
Dividend income | 659 | 659 |
Unrealized gains and losses on equity securities, net | 27,241 | 0 |
Interest and other income | 54 | 120 |
Interest expense | (43,552) | (43,488) |
Loss on early extinguishment of debt | (130) | 0 |
Income from continuing operations before income tax expense and equity in earnings of an investee | 56,467 | 32,245 |
Income (loss) from continuing operations | 237,405 | 32,281 |
Income tax expense | (260) | (92) |
Equity in earnings of an investee | 44 | 128 |
Income (loss) before gain on sale of properties | 56,251 | 32,281 |
Gain on sale of properties | 181,154 | 0 |
Net income (loss) | 237,405 | 32,281 |
Net income attributable to noncontrolling interest | (1,383) | (126) |
Net income attributable to common shareholders | 236,022 | 32,155 |
Total assets | 7,384,064 |  | $ 7,294,019
Triple Net Leased Senior Living Communities |  |  |
Revenues: |  |  |
Rental income | 67,975 | 67,252 |
Residents fees and services | 0 | 0 |
Total revenues | 67,975 | 67,252 |
Expenses: |  |  |
Property operating expenses | 0 | 0 |
Depreciation and amortization | 20,195 | 20,334 |
General and administrative | 0 | 0 |
Acquisition and certain other transaction related costs | 0 | 0 |
Total expenses | 20,195 | 20,334 |
Operating income | 47,780 | 46,918 |
Dividend income | 0 | 0 |
Unrealized gains and losses on equity securities, net | 0 |  |
Interest and other income | 0 | 0 |
Interest expense | (571) | (5,339) |
Loss on early extinguishment of debt | 0 |  |
Income from continuing operations before income tax expense and equity in earnings of an investee | 47,209 | 41,579 |
Income (loss) from continuing operations |  | 41,579 |
Income tax expense | 0 | 0 |
Equity in earnings of an investee | 0 | 0 |
Income (loss) before gain on sale of properties | 47,209 | 41,579 |
Gain on sale of properties | 181,154 | 0 |
Net income (loss) | 228,363 | 41,579 |
Net income attributable to noncontrolling interest | 0 | 0 |
Net income attributable to common shareholders | 228,363 | 41,579 |
Total assets | 2,199,708 |  | 2,251,756
Managed Senior Living Communities |  |  |
Revenues: |  |  |
Rental income | 0 | 0 |
Residents fees and services | 102,087 | 98,118 |
Total revenues | 102,087 | 98,118 |
Expenses: |  |  |
Property operating expenses | 77,205 | 73,880 |
Depreciation and amortization | 14,811 | 20,215 |
General and administrative | 0 | 0 |
Acquisition and certain other transaction related costs | 0 | 0 |
Total expenses | 92,016 | 94,095 |
Operating income | 10,071 | 4,023 |
Dividend income | 0 | 0 |
Unrealized gains and losses on equity securities, net | 0 |  |
Interest and other income | 0 | 0 |
Interest expense | (1,327) | (1,176) |
Loss on early extinguishment of debt | (130) |  |
Income from continuing operations before income tax expense and equity in earnings of an investee | 8,614 | 2,847 |
Income (loss) from continuing operations |  | 2,847 |
Income tax expense | 0 | 0 |
Equity in earnings of an investee | 0 | 0 |
Income (loss) before gain on sale of properties | 8,614 | 2,847 |
Gain on sale of properties | 0 | 0 |
Net income (loss) | 8,614 | 2,847 |
Net income attributable to noncontrolling interest | 0 | 0 |
Net income attributable to common shareholders | 8,614 | 2,847 |
Total assets | 1,313,777 |  | 1,273,757
MOBs |  |  |
Revenues: |  |  |
Rental income | 101,151 | 94,646 |
Residents fees and services | 0 | 0 |
Total revenues | 101,151 | 94,646 |
Expenses: |  |  |
Property operating expenses | 30,938 | 27,177 |
Depreciation and amortization | 34,385 | 31,678 |
General and administrative | 0 | 0 |
Acquisition and certain other transaction related costs | 0 | 0 |
Total expenses | 65,323 | 58,855 |
Operating income | 35,828 | 35,791 |
Dividend income | 0 | 0 |
Unrealized gains and losses on equity securities, net | 0 |  |
Interest and other income | 0 | 0 |
Interest expense | (5,909) | (6,321) |
Loss on early extinguishment of debt | 0 |  |
Income from continuing operations before income tax expense and equity in earnings of an investee | 29,919 | 29,470 |
Income (loss) from continuing operations |  | 29,470 |
Income tax expense | 0 | 0 |
Equity in earnings of an investee | 0 | 0 |
Income (loss) before gain on sale of properties | 29,919 | 29,470 |
Gain on sale of properties | 0 | 0 |
Net income (loss) | 29,919 | 29,470 |
Net income attributable to noncontrolling interest | (1,383) | (126) |
Net income attributable to common shareholders | 28,536 | 29,344 |
Total assets | 3,454,428 |  | 3,367,485
All Other Operations |  |  |
Revenues: |  |  |
Rental income | 4,602 | 4,545 |
Residents fees and services | 0 | 0 |
Total revenues | 4,602 | 4,545 |
Expenses: |  |  |
Property operating expenses | 0 | 0 |
Depreciation and amortization | 948 | 948 |
General and administrative | 25,118 | 15,083 |
Acquisition and certain other transaction related costs | 20 | 292 |
Total expenses | 26,086 | 16,323 |
Operating income | (21,484) | (11,778) |
Dividend income | 659 | 659 |
Unrealized gains and losses on equity securities, net | 27,241 |  |
Interest and other income | 54 | 120 |
Interest expense | (35,745) | (30,652) |
Loss on early extinguishment of debt | 0 |  |
Income from continuing operations before income tax expense and equity in earnings of an investee | (29,275) | (41,651) |
Income (loss) from continuing operations |  | (41,615) |
Income tax expense | (260) | (92) |
Equity in earnings of an investee | 44 | 128 |
Income (loss) before gain on sale of properties | (29,491) | (41,615) |
Gain on sale of properties | 0 | 0 |
Net income (loss) | (29,491) | (41,615) |
Net income attributable to noncontrolling interest | 0 | 0 |
Net income attributable to common shareholders | (29,491) | $ (41,615) |
Total assets | $ 416,151 |  | $ 401,021

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