v2.4.0.6

CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Supplemental disclosures of non-cash investing and financing activities |  |  |
Number of shares withheld to satisfy employees' tax withholding and other liabilities | 121,351 | 129,762 | 48,882
Shares withheld to satisfy employees' tax withholding and other liabilities, value | $ 15,543,000 | $ 14,891,000 | $ 4,203,000
Number of shares and options forfeited | 7,558 | 505 | 1,300
Shares and options forfeited, value | 393,000 | 35,000 | 39,000
Number of options granted for common stock | 115,303 | 144,827 | 126,484
Options granted for common stock, value | 3,357,000 | 4,258,000 | 2,460,000
Decrease in other comprehensive income due to a change in other liabilities | 22,876,000 | 85,845,000 |
Cash flow hedge losses reclassified to earnings | 1,889,000 |  |
Increase (decrease) in other comprehensive income due to a change in prepaid expenses and other assets |  |  | (108,000)
Increase (decrease) in prepaid expenses and other assets due to hedge accounting | (11,000) | (1,498,000) | 1,737,000
Common dividends declared but not paid | 110,966,000 | 84,953,000 | 76,676,000
Increase in redeemable noncontrolling interests | 375,000 | 2,607,000 | 5,573,000
Stock issued in connection with stock grants (in shares) | 96,592 | 511,817 | 102,984
Stock issued in connection with stock grants | 12,883,000 | 64,747,000 | 7,777,000
Common stock issued through the dividend reinvestment plan (in shares) | 2,331 | 3,343 | 5,687
Common stock issued through the dividend reinvestment plan | 321,000 | 403,000 | 525,000
Redemption/Conversion of DownREIT (in units) |  | 7,500 | 25
Redemption/Conversion of DownREIT |  | 365,000 | 3,000
Shares issued to members of Company's Board of Directors (in shares) |  |  | 61,055
Shares issued, net value |  | 50,224,000 | 7,385,000
Shares issued to members of Company's Board of Directors, value |  |  | 3,322,000
Repayments of variable-rate, tax-exempt bond financing |  | 93,440,000 |
Noncontrolling interest recognized in conjunction with the consolidation of a development joint venture/Fund I subsidiary |  | 3,350,000 | 4,045,000
4.61% Fixed Rate Mortgage Loan |  |  |
Supplemental disclosures of non-cash investing and financing activities |  |  |
Mortgage notes assumed | 11,958,000 |  |
Stated interest rate (as a percent) | 4.61% |  |
4.75% Fixed Rate Mortgage Loan |  |  |
Supplemental disclosures of non-cash investing and financing activities |  |  |
Mortgage notes assumed |  | 44,044,000 |
Stated interest rate (as a percent) |  | 4.75% |
5.24% Fixed Rate Mortgage Loan |  |  |
Supplemental disclosures of non-cash investing and financing activities |  |  |
Mortgage notes assumed |  | 55,400,000 |
Stated interest rate (as a percent) |  | 5.24% |
5.86% Fixed Rate Mortgage Loan |  |  |
Supplemental disclosures of non-cash investing and financing activities |  |  |
Mortgage loans relinquished |  | 55,800,000 |
Stated interest rate (as a percent) |  | 5.86% |
Development Community |  |  |
Supplemental disclosures of non-cash investing and financing activities |  |  |
Capital lease obligation recorded in accrued expenses and other liabilities |  | 14,500,000 |
Development Right |  |  |
Supplemental disclosures of non-cash investing and financing activities |  |  |
Capital lease obligation recorded in accrued expenses and other liabilities |  | $ 17,285,000 |

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