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Segment Reporting (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 item | Jun. 30, 2011 | Dec. 31, 2011
Segment Reporting |  |  |  |  |
Number of operating segments |  |  | 3 |  |
Number of reportable segments |  |  | 2 |  |
Revenues: |  |  |  |  |
Rental income | $ 110,986 | $ 100,318 | $ 220,491 | $ 198,870 |
Residents fees and services | 35,986 | 844 | 71,554 | 844 |
Total revenues | 146,972 | 101,162 | 292,045 | 199,714 |
Expenses: |  |  |  |  |
Depreciation | 35,230 | 26,935 | 68,607 | 53,296 |
Property operating expenses | 40,734 | 11,302 | 80,068 | 21,735 |
General and administrative | 8,068 | 6,793 | 15,753 | 12,949 |
Acquisition related costs | 1,829 | 2,814 | 2,517 | 3,927 |
Impairment of assets |  |  | 3,071 | 166 |
Total expenses | 85,861 | 47,844 | 170,016 | 92,073 |
Operating income (loss) | 61,111 | 53,318 | 122,029 | 107,641 |
Interest and other income | 227 | 244 | 709 | 476 |
Interest expense | (28,120) | (23,361) | (57,009) | (46,107) |
Loss on early extinguishment of debt |  | (427) |  | (427) |
Gain on sale of properties |  | 21,315 |  | 21,315 |
Equity in earnings of an investee | 76 | 46 | 121 | 83 |
Income before income tax expense | 33,294 | 51,135 | 65,850 | 82,981 |
Income tax expense | (43) | (87) | (247) | (158) |
Net income | 33,251 | 51,048 | 65,603 | 82,823 |
Total assets | 4,466,552 |  | 4,466,552 |  | 4,383,048
Short and Long Term Residential Care Communities |  |  |  |  |
Revenues: |  |  |  |  |
Rental income | 59,643 | 57,186 | 118,467 | 114,296 |
Residents fees and services | 35,986 | 844 | 71,554 | 844 |
Total revenues | 95,629 | 58,030 | 190,021 | 115,140 |
Expenses: |  |  |  |  |
Depreciation | 21,065 | 17,014 | 41,962 | 33,743 |
Property operating expenses | 26,244 | 609 | 51,743 | 609 |
Total expenses | 47,309 | 17,623 | 93,705 | 34,352 |
Operating income (loss) | 48,320 | 40,407 | 96,316 | 80,788 |
Interest expense | (12,976) | (10,326) | (26,153) | (20,599) |
Gain on sale of properties |  | 21,236 |  | 21,236 |
Income before income tax expense | 35,344 | 51,317 | 70,163 | 81,425 |
Net income | 35,344 | 51,317 | 70,163 | 81,425 |
Total assets | 2,449,845 | 2,060,845 | 2,449,845 | 2,060,845 |
MOBs |  |  |  |  |
Revenues: |  |  |  |  |
Rental income | 46,885 | 38,658 | 93,146 | 75,748 |
Total revenues | 46,885 | 38,658 | 93,146 | 75,748 |
Expenses: |  |  |  |  |
Depreciation | 13,217 | 8,973 | 24,749 | 17,657 |
Property operating expenses | 14,490 | 10,693 | 28,325 | 21,126 |
Impairment of assets |  |  | 3,071 | 166 |
Total expenses | 27,707 | 19,666 | 56,145 | 38,949 |
Operating income (loss) | 19,178 | 18,992 | 37,001 | 36,799 |
Interest expense | (381) | (215) | (793) | (432) |
Gain on sale of properties |  | 79 |  | 79 |
Income before income tax expense | 18,797 | 18,856 | 36,208 | 36,446 |
Net income | 18,797 | 18,856 | 36,208 | 36,446 |
Total assets | 1,587,430 | 1,288,412 | 1,587,430 | 1,288,412 |
All Other Operations |  |  |  |  |
Revenues: |  |  |  |  |
Rental income | 4,458 | 4,474 | 8,878 | 8,826 |
Total revenues | 4,458 | 4,474 | 8,878 | 8,826 |
Expenses: |  |  |  |  |
Depreciation | 948 | 948 | 1,896 | 1,896 |
General and administrative | 8,068 | 6,793 | 15,753 | 12,949 |
Acquisition related costs | 1,829 | 2,814 | 2,517 | 3,927 |
Total expenses | 10,845 | 10,555 | 20,166 | 18,772 |
Operating income (loss) | (6,387) | (6,081) | (11,288) | (9,946) |
Interest and other income | 227 | 244 | 709 | 476 |
Interest expense | (14,763) | (12,820) | (30,063) | (25,076) |
Loss on early extinguishment of debt |  | (427) |  | (427) |
Equity in earnings of an investee | 76 | 46 | 121 | 83 |
Income before income tax expense | (20,847) | (19,038) | (40,521) | (34,890) |
Income tax expense | (43) | (87) | (247) | (158) |
Net income | (20,890) | (19,125) | (40,768) | (35,048) |
Total assets | 429,277 | 384,161 | 429,277 | 384,161 |
Consolidated |  |  |  |  |
Revenues: |  |  |  |  |
Rental income | 110,986 | 100,318 | 220,491 | 198,870 |
Residents fees and services | 35,986 | 844 | 71,554 | 844 |
Total revenues | 146,972 | 101,162 | 292,045 | 199,714 |
Expenses: |  |  |  |  |
Depreciation | 35,230 | 26,935 | 68,607 | 53,296 |
Property operating expenses | 40,734 | 11,302 | 80,068 | 21,735 |
General and administrative | 8,068 | 6,793 | 15,753 | 12,949 |
Acquisition related costs | 1,829 | 2,814 | 2,517 | 3,927 |
Impairment of assets |  |  | 3,071 | 166 |
Total expenses | 85,861 | 47,844 | 170,016 | 92,073 |
Operating income (loss) | 61,111 | 53,318 | 122,029 | 107,641 |
Interest and other income | 227 | 244 | 709 | 476 |
Interest expense | (28,120) | (23,361) | (57,009) | (46,107) |
Loss on early extinguishment of debt |  | (427) |  | (427) |
Gain on sale of properties |  | 21,315 |  | 21,315 |
Equity in earnings of an investee | 76 | 46 | 121 | 83 |
Income before income tax expense | 33,294 | 51,135 | 65,850 | 82,981 |
Income tax expense | (43) | (87) | (247) | (158) |
Net income | 33,251 | 51,048 | 65,603 | 82,823 |
Total assets | $ 4,466,552 | $ 3,733,418 | $ 4,466,552 | $ 3,733,418 |

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