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Equity (Details) $ / shares in Units, shares in Thousands, $ in Thousands |  |  |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Mar. 02, 2017 $ / shares | Feb. 02, 2017 $ / shares | Oct. 07, 2015 USD ($) property | Oct. 31, 2015 USD ($) | Jun. 30, 2015 USD ($) | Dec. 31, 2016 USD ($) item $ / shares shares | Dec. 31, 2015 USD ($) $ / shares shares | Dec. 31, 2014 $ / shares shares
Equity |  |  |  |  |  |  |  |
Dividends declared per common share (in dollars per share) | $ / shares |  | $ 0.37 |  |  |  | $ 2.095 | $ 2.26 | $ 2.18
Dividends paid per common share | $ / shares |  |  |  |  |  | $ 2.095 | $ 2.26 | $ 2.18
Maximum sales under equity offering program |  |  |  |  | $ 750,000 |  |  |
Common stock issued (in shares) | shares |  |  |  |  |  |  | 1,800 |
Weighted average price (in dollars per share) | $ / shares |  |  |  |  |  |  | $ 40.14 |
Proceeds from issuance of common stock |  |  |  |  |  |  | $ 73,000 |
Stock issuance fees and commissions |  |  |  |  |  |  | 1,000 |
Accumulated Other Comprehensive Loss |  |  |  |  |  |  |  |
Cumulative foreign currency translation adjustment |  |  |  |  |  | $ (22,817) | (19,485) |
Unrealized losses on cash flow hedges, net |  |  |  |  |  | (3,642) | (7,582) |
Supplemental Executive Retirement Plan minimum liability |  |  |  |  |  | (3,129) | (3,411) |
Unrealized (losses) gains on available for sale securities |  |  |  |  |  | (54) | 8 |
Total accumulated other comprehensive loss |  |  |  |  |  | $ (29,642) | (30,470) |
Noncontrolling interests |  |  |  |  |  |  |  |
Number of Down REIT units | item |  |  |  |  |  | 4,000,000 |  |
DownREIT unit, carrying value |  |  |  |  |  | $ 179,336 | $ 185,608 |
HCP Ventures V |  |  |  |  |  |  |  |
Noncontrolling interests |  |  |  |  |  |  |  |
Number of Real Estate Properties | property |  |  | 11 |  |  |  |  |
Subsequent event |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |
Dividends paid per common share | $ / shares | $ 0.37 |  |  |  |  |  |  |
HCP Ventures V |  |  |  |  |  |  |  |
Noncontrolling interests |  |  |  |  |  |  |  |
Noncontrolling interest (as a percent) |  |  | 49.00% | 49.00% |  |  |  |
Noncontrolling Interest, Increase from Sale of Parent Equity Interest |  |  | $ 110,000 | $ 110,000 |  |  |  |
Consideration received from sale of noncontrolling interest in HCP Ventures V |  |  | $ 110,000 | $ 110,000 |  |  |  |
Common Stock |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |
Common stock issued (in shares) | shares |  |  |  |  |  | 2,552 | 5,117 | 2,939
Company's common stock issuances |  |  |  |  |  |  |  |
Dividend Reinvestment and Stock Purchase Plan (in shares) | shares |  |  |  |  |  | 2,021 | 2,762 | 2,299
Conversion of DownREIT units (in shares) | shares |  |  |  |  |  | 145 | 104 | 27
Exercise of stock options (in shares) | shares |  |  |  |  |  | 133 | 823 | 169
Vesting of restricted stock units (in shares) | shares |  |  |  |  |  | 529 | 409 | 614
Repurchase of common stock (in shares) | shares |  |  |  |  |  | 237 | 198 | 323
Total Noncontrolling Interests |  |  |  |  |  |  |  |
Company's common stock issuances |  |  |  |  |  |  |  |
Conversion of DownREIT units (in shares) | shares |  |  |  |  |  | 7,000 |  |
Noncontrolling interests |  |  |  |  |  |  |  |
Non-managing members DownREIT units outstanding | item |  |  |  |  |  | 4,000,000 |  |
Number of DownREIT LLCs | item |  |  |  |  |  | 5 |  |
DownREIT unit, carrying value |  |  |  |  |  | $ 179,000 |  |
DownREIT unit, fair value |  |  |  |  |  | $ 199,000 |  |

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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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