v3.3.1.900

Preferred and Common Units of the Operating Partnership (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2015
Class of Stock [Line Items] |
Schedule of Common Stock Sales Under the At-the-Market Offering | The following table sets forth information regarding sales of our common stock under our at-the-market offering programs for the years ended December 31, 2015, 2014 and 2013:
| Year Ended December 31,
| 2015 |  | 2014 |  | 2013
| (in millions, except share data)
Shares of common stock sold during the period | 1,866,267 |  |  | 1,599,123 |  |  | 1,040,838 |
Aggregate gross proceeds | $ | 140.1 |  |  | $ | 104.7 |  |  | $ | 55.3 |
Aggregate net proceeds after underwriting discounts | $ | 138.2 |  |  | $ | 103.1 |  |  | $ | 54.4 |
The proceeds from sales were used to fund acquisitions, development expenditures and general corporate purposes including repayment of borrowings under the unsecured revolving credit facility.
Redeemable Noncontrolling Interest [Table Text Block] | The following table sets forth the number of common units held by the Company and the number of common units held by non-affiliated investors and certain of our executive officers and directors in the form of noncontrolling common units as well as the ownership interest held on each respective date:
| December 31, 2015 |  | December 31, 2014
Company owned common units in the Operating Partnership | 92,258,690 |  |  | 86,259,684 |
Company owned general partnership interest | 98.1 | % |  | 98.0 | %
Noncontrolling common units of the Operating Partnership | 1,764,775 |  |  | 1,804,200 |
Ownership interest of noncontrolling interest | 1.9 | % |  | 2.0 | %
For a further discussion of the noncontrolling common units during the years ended December 31, 2015 and 2014, refer to Note 10 “Noncontrolling Interests on the Company’s Consolidated Financial Statements”.
Schedule of Accrued Dividends and Distributions | The following tables summarize accrued dividends and distributions for the noted outstanding shares of common stock, preferred stock, and noncontrolling units as of December 31, 2015 and 2014:
| December 31,
| 2015 |  | 2014
| (in thousands)
Dividends and Distributions payable to: |  |  |
Common stockholders | $ | 32,291 |  |  | $ | 30,191 |
Noncontrolling common unitholders of the Operating Partnership | 618 |  |  | 631 |
RSU holders (1) | 427 |  |  | 421 |
Total accrued dividends and distribution to common stockholders and noncontrolling unitholders | 33,336 |  |  | 31,243 |
Preferred stockholders | 1,656 |  |  | 1,656 |
Total accrued dividends and distributions | $ | 34,992 |  |  | $ | 32,899 |
______________________
(1) | The amount includes the value of the dividend equivalents that will be paid with additional RSUs (see Note 13 “Share-Based Compensation” for additional information)
Schedule of Outstanding Shares of Common Stock, Preferred Stock and Noncontrolling Units |
| December 31,
| 2015 |  | 2014
Outstanding Shares and Units: |
Common stock (1) | 92,258,690 |  |  | 86,259,684 |
Noncontrolling common units | 1,764,775 |  |  | 1,804,200 |
RSUs (2) | 1,269,809 |  |  | 1,248,352 |
Series G Preferred stock | 4,000,000 |  |  | 4,000,000 |
Series H Preferred stock | 4,000,000 |  |  | 4,000,000 |
______________________
(1) | The amount includes nonvested shares.
(2) | The amount includes nonvested RSUs. Does not include the 425,452 and 247,089 market measure-based RSUs because not all the necessary performance conditions have been met as of December 31, 2015 and 2014, respectively.
Kilroy Realty, L.P. [Member] |
Class of Stock [Line Items] |
Schedule of Common Stock Sales Under the At-the-Market Offering | During the years ended December 31, 2015, 2014 and 2013, the Company utilized its at-the-market stock offering programs to issue shares of common stock (see Note 11 “Stockholders’ Equity of the Company” for additional information). The net offering proceeds and property acquired using net offering proceeds were contributed by the Company to the Operating Partnership in exchange for common units for the years ended December 31, 2015, 2014 and 2013 are as follows:
| Year Ended December 31,
| 2015 |  | 2014 |  | 2013
| (in millions, except share and per share data)
Shares of common stock contributed by the Company | 1,866,267 |  |  | 1,599,123 |  |  | 1,040,838 |
Common units exchanged for share of common stock by the Company | 1,866,267 |  |  | 1,599,123 |  |  | 1,040,838 |
Aggregate gross proceeds | $ | 140.1 |  |  | $ | 104.7 |  |  | $ | 55.3 |
Aggregate net proceeds after underwriting discounts | $ | 138.2 |  |  | $ | 103.1 |  |  | $ | 54.4 |
Schedule of Accrued Dividends and Distributions | The following tables summarize accrued distributions for the noted common and preferred units as of December 31, 2015 and 2014:
| December 31, 2015 |  | December 31, 2014
| (in thousands)
Distributions payable to: |  |  |
General partner | $ | 32,291 |  |  | $ | 30,191 |
Common limited partners | 618 |  |  | 631 |
RSU holders (1) | 427 |  |  | 421 |
Total accrued distributions to common unitholders | 33,336 |  |  | 31,243 |
Preferred unitholders | 1,656 |  |  | 1,656 |
Total accrued distributions | $ | 34,992 |  |  | $ | 32,899 |
______________________
(1) | The amount includes the value of the dividend equivalents that will be paid with additional RSUs (see Note 13 “Share-Based Compensation” for additional information).
Schedule of Outstanding Shares of Common Stock, Preferred Stock and Noncontrolling Units |
| December 31, 2015 |  | December 31, 2014
Outstanding Units: |
Common units held by the general partner | 92,258,690 |  |  | 86,259,684 |
Common units held by the limited partners | 1,764,775 |  |  | 1,804,200 |
RSUs (1) | 1,269,809 |  |  | 1,248,352 |
Series G Preferred units | 4,000,000 |  |  | 4,000,000 |
Series H Preferred units | 4,000,000 |  |  | 4,000,000 |
______________________
(1) | Does not include the 425,452 and 247,089 market measure-based RSUs because not all the necessary performance conditions have been met as of December 31, 2015 and 2014, respectively.

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ClassOfStockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of redeemable noncontrolling interest (as defined) included in the statement of financial position as either a liability or temporary equity. As of the date of the statement of financial position, such redeemable noncontrolling interest is currently redeemable, as defined, for cash or other assets of the entity at (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the entity. + References No definition available. + Details
Name: | us-gaap_RedeemableNoncontrollingInterestTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of all or some of the information related to dividends declared, but not paid, as of the financial reporting date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
Name: | us-gaap_ScheduleOfDividendsPayableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of an entity's stock, including par or stated value per share, number and dollar amount of share subscriptions, shares authorized, shares issued, shares outstanding, number and dollar amount of shares held in an employee trust, dividend per share, total dividends, share conversion features, par value plus additional paid in capital, the value of treasury stock and other information necessary to a fair presentation, and EPS information. Stock by class includes common, convertible, and preferred stocks which are not redeemable or redeemable solely at the option of the issuer. Includes preferred stock with redemption features that are solely within the control of the issuer and mandatorily redeemable stock if redemption is required to occur only upon liquidation or termination of the reporting entity. If more than one issue is outstanding, state the title of each issue and the corresponding dollar amount; dollar amount of any shares subscribed but unissued and the deduction of subscriptions receivable there from; number of shares authorized, issued, and outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=27011957&loc=d3e177068-122764 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21553-112644 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(d),(e)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6403732&loc=d3e21300-112643 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28,29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21538-112644 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21488-112644 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29 -Article 5 + Details
Name: | us-gaap_ScheduleOfStockByClassTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) and of the changes in the number of shares of equity securities during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented. + References Reference 1: 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
Name: | us-gaap_ScheduleOfStockholdersEquityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=us-gaap_SubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |