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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Supplemental disclosures of non-cash investing and financing activities |  |
Common stock issued through the dividend reinvestment plan (in shares) | 1,165 | 576
Common stock issued through the dividend reinvestment plan | $ 205 | $ 101
Number of shares withheld to satisfy employees' tax withholding and other liabilities (in shares) | 57,172 | 48,189
Shares withheld to satisfy employees' tax withholding and other liabilities, value | $ 10,149 | $ 8,164
Stock Issued During Period, Shares, Share-based Compensation, Forfeited (in shares) | 236 |
Stock Issued During Period, Value, Share-based Compensation, Forfeited | $ 41 | 76
Dividends declared but not paid | 195,657 | 185,173
Change in redemption value of redeemable noncontrolling interest | (183) |
Increase (Decrease) in Prepaid Expense and Other Assets | (180) | 5,422
(Loss) income on cash flow hedges | 145 | (47,757)
Increase in accrued expenses, other liabilities and accrued interest payable | 102 | 42,335
Cash flow hedge losses reclassified to earnings | 1,752 | 1,374
Net operating real estate | 15,171,803 |
Prepaid expenses and other assets | 287,130 |
Avalon Maplewood [Member] |  |
Supplemental disclosures of non-cash investing and financing activities |  |
Net operating real estate | 16,361 |
Prepaid expenses and other assets | $ 12,598 |
Mortgage notes payable | Notes Payable Maturities 2020 [Member] | Avalon Hoboken [Member] |  |
Supplemental disclosures of non-cash investing and financing activities |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt |  | $ 67,904
Restricted Stock and Restricted Stock Converted From Performance Shares [Member] |  |
Supplemental disclosures of non-cash investing and financing activities |  |
Restricted stock granted (in shares) | 198,502 | 193,171
Restricted Stock Converted From Performance Shares [Member] |  |
Supplemental disclosures of non-cash investing and financing activities |  |
Restricted stock granted (in shares) | 128,482 | 115,618
Restricted stock |  |
Supplemental disclosures of non-cash investing and financing activities |  |
Restricted stock granted (in shares) | 70,020 | 77,553
Fair value of shares issued | $ 12,538 | $ 12,529
Stock Issued During Period, Shares, Share-based Compensation, Forfeited (in shares) | 236 | 499
Retained Earnings [Member] |  |
Supplemental disclosures of non-cash investing and financing activities |  |
Change in redemption value of redeemable noncontrolling interest | $ (183) | $ 299

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