v2.4.0.6

Segment Information (Details 2) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Assets |  |  |
Total assets | $ 17,271,910,000 | $ 5,758,021,000 |
Percentage of total assets | 100.00% | 100.00% |
Capital expenditures |  |  |
Total capital expenditures | 629,669,000 | 294,296,000 | 127,828,000
Triple-Net Leased Properties |  |  |
Assets |  |  |
Total assets | 8,704,061,000 | 2,474,612,000 |
Percentage of total assets | 50.40% | 43.00% |
Capital expenditures |  |  |
Total capital expenditures | 133,761,000 | 12,884,000 | 10,867,000
Capital expenditures from funds held in Code Section 1031 exchange escrow account |  |  | 9,300,000
Senior Living Operations |  |  |
Assets |  |  |
Total assets | 5,758,497,000 | 2,297,041,000 |
Percentage of total assets | 33.30% | 39.90% |
Capital expenditures |  |  |
Total capital expenditures | 370,455,000 | 10,268,000 | 11,081,000
MOB Operations |  |  |
Assets |  |  |
Total assets | 2,433,160,000 | 748,945,000 |
Percentage of total assets | 14.10% | 13.00% |
Capital expenditures |  |  |
Total capital expenditures | 125,453,000 | 271,144,000 | 105,880,000
Capital expenditures from funds held in Code Section 1031 exchange escrow account |  |  | 55,700,000
All Other |  |  |
Assets |  |  |
Total assets | $ 376,192,000 | $ 237,423,000 |
Percentage of total assets | 2.20% | 4.10% |

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