Equity Method Investments and Joint Ventures [Abstract] Schedule of Financial Information for Unconsolidated Joint Ventures Schedule of Financial Information for Unconsolidated Joint Ventures [Table Text Block] Tabular disclosure of financial information for unconsolidated joint ventures [Table Text Block] Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Acquired Finite-Lived Intangible Assets [Line Items] Acquired Finite-Lived Intangible Assets [Line Items] Amortization of Intangible Assets Amortization of Intangible Assets Amortization of Below Market Lease Amortization of Below Market Lease Related Party Transactions [Abstract] Unsecured Notes Payable to Related Parties Related Party - Notes Payable [Text Block] Related Party - Notes Payable : unsecured notes payable with related parties Acquired below-market leases: Below Market Lease, Net [Abstract] Gross amount Below Market Lease, Gross Accumulated Amortization Below Market Lease, Accumulated Amortization Acquired below-market leases, net Below Market Lease, Net Schedule of Acquired Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Acquired leasing commissions Acquired Leasing Commissions [Member] Acquired Leasing Commissions [Member] Acquired leases in place Leases, Acquired-in-Place [Member] Acquired tenant relationship costs Customer Relationships [Member] Acquired other intangibles Other Intangible Assets [Member] Gross amount Finite-Lived Intangible Assets, Gross Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Net balance Finite-Lived Intangible Assets, Net Real Estate Investments, Net [Abstract] Schedule of Investments in Real Estate, Net Schedule of Investments in Real Estate, Net [Table Text Block] Schedule of Investments in Real Estate, Net [Table Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Liquidity Liquidity Disclosure [Policy Text Block] Earnings Per Share [Abstract] Noncontrolling Interest [Table] Noncontrolling Interest [Table] Capital Units by Class [Axis] Capital Units by Class [Axis] Capital Unit, Class [Domain] Capital Unit, Class [Domain] Preferred Units of Operating Partnership Preferred Units of Operating Partnership [Member] Preferred Units of Operating Partnership [Member] Common Units of Operating Partnership Common Units of Operating Partnership [Member] Common Units of Operating Partnership [Member] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Non-Controlling Interests Noncontrolling Interest [Member] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Class A Common Stock Common Class A [Member] Proportionate Voting Preferred Stock Proportionate Voting Preferred Stock [Member] Proportionate Voting Preferred Stock [Member] Partner Type [Axis] Partner Type [Axis] Partner Type of Partners' Capital Account, Name [Domain] Partner Type of Partners' Capital Account, Name [Domain] General Partner General Partner [Member] Limited Partner Limited Partner [Member] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] Pacific Office Management Pacific Office Management [Member] Pacific Office Management [Member] Venture POP Venture LLC [Member] POP Venture LLC [Member] Noncontrolling Interest [Line Items] Noncontrolling Interest [Line Items] Ownership percentage by non-controlling owners Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Common Stock reserved for future issuance upon redemption of common and preferred units (in shares) Common Stock, Capital Shares Reserved for Future Issuance Number of Common Units each Preferred Unit was convertible into (in common units) Preferred Units, Conversion Ratio Preferred Units, Conversion Ratio Minimum amount of underwritten public offering where Preferred Units become convertible Preferred Units, Conversion Restriction, Minimum Amount of Underwritten Public Offering of Common Stock Preferred Units, Conversion Restriction, Minimum Amount of Underwritten Public Offering of Common Stock Number of Class A Common Stock each Common Unit was redeemable into, upon conversion of Preferred Units Common Units, Redemption Ratio Common Units, Redemption Ratio Redemption restriction period from Preferred Units conversion date (in years) Common Units, Redemption Restriction Period from Date of Preferred Units Conversion Common Units, Redemption Restriction Period from Date of Preferred Units Conversion Distribution at annual percentage of liquidation preference per Preferred Unit Preferred Units, Distribution Annual Percentage of Liquidation Preference Preferred Units, Distribution Annual Percentage of Liquidation Preference Liquidation preference per Preferred Unit (in usd per share) Preferred Units, Liquidation Preference Preferred Units, Liquidation Preference Cumulative unpaid distributions attributable to Preferred Units Preferred Units, Cumulative Distributions Payable Preferred Units, Cumulative Distributions Payable Preferred Stock, shares issued Preferred Stock, Shares Issued Percentage of voting power of reporting entity Reporting Entity Percentage of Voting Power Reporting Entity Percentage of Voting Power Common stock owned by related party assuming redemption of all Operating Partnership units (in shares) Common Stock Owned by Related Party (Including Redeemable Units If-converted Shares) Common Stock Owned by Related Party (Including Redeemable Units If-converted Shares) Voting power in the Company assuming redemption of all Operating Partnership units Related Party Percentage of Voting Power in Entity (Including Redeemable Units If-converted Shares) Related Party Percentage of Voting Power in Entity (Including Redeemable Units If-converted Shares) Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Real Estate Property Ownership [Axis] Real Estate Property Ownership [Axis] Real Estate Properties [Domain] Real Estate Properties [Domain] Unconsolidated Properties Unconsolidated Properties [Member] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Summarized Financial Information - Income Statement Equity Method Investment, Summarized Financial Information, Income Statement [Abstract] Revenues: Real Estate Revenue, Net [Abstract] Rental Equity Method Investment, Summarized Financial Information, Rental Revenue Equity Method Investment, Summarized Financial Information, Rental Revenue Other Equity Method Investment, Summarized Financial Information, Other Revenue Equity Method Investment, Summarized Financial Information, Other Revenue Total revenues Equity Method Investment, Summarized Financial Information, Revenue Expenses: Costs and Expenses [Abstract] Rental operating Equity Method Investment, Summarized Financial Information, Rental Operating Expenses Equity Method Investment, Summarized Financial Information, Rental Operating Expenses Depreciation and amortization Equity Method Investment, Summarized Financial Information, Depreciation and Amortization Equity Method Investment, Summarized Financial Information, Depreciation and Amortization Interest Equity Method Investment, Summarized Financial Information, Interest Expense Equity Method Investment, Summarized Financial Information, Interest Expense Equity Method Investment, Summarized Financial Information, Other Expenses Equity Method Investment, Summarized Financial Information, Other Expenses Equity Method Investment, Summarized Financial Information, Other Expenses Total expenses Equity Method Investment, Summarized Financial Information, Total Expenses Equity Method Investment, Summarized Financial Information, Total Expenses Loss before gain (loss) on sale of properties and gain on extinguishment of debt Equity Method Investment, Summarized Financial Information, Gain (Loss) Before Gain on Extinguishment of Debt Equity Method Investment, Summarized Financial Information, Gain (Loss) Before Gain on Extinguishment of Debt Net gain on sale of properties Equity Method Investment, Summarized Financial Information, Net Gain (Loss) on Sale Equity Method Investment, Summarized Financial Information, Net Gain (Loss) on Sale Gain on extinguishment of debt Equity Method Investment, Summarized Financial Information, Net Gain (Loss) on Extinguishment of Debt Equity Method Investment, Summarized Financial Information, Net Gain (Loss) on Extinguishment of Debt Net income (loss) Equity Method Investment, Summarized Financial Information, Net Income (Loss) Equity in net earnings (loss) of unconsolidated joint ventures Income (Loss) from Equity Method Investments Assets Equity Method Investment, Summarized Financial Information, Assets [Abstract] Investments in real estate, net Equity Method Investment, Summarized Financial Information, Investments in Real Estate, Net Equity Method Investment, Summarized Financial Information, Investments in Real Estate, Net Other assets Equity Method Investment, Summarized Financial Information, Other Assets Equity Method Investment, Summarized Financial Information, Other Assets Total assets Equity Method Investment, Summarized Financial Information, Assets Liabilities Equity Method Investment, Summarized Financial Information, Liabilities [Abstract] Mortgage and other loans Equity Method Investment, Summarized Financial Information, Mortgage and Other Loans Equity Method Investment, Summarized Financial Information, Mortgage and Other Loans Other liabilities Equity Method Investment, Summarized Financial Information, Other Liabilities Equity Method Investment, Summarized Financial Information, Other Liabilities Total liabilities Equity Method Investment, Summarized Financial Information, Liabilities Investment in unconsolidated joint ventures Real Estate Investments, Unconsolidated Real Estate and Other Joint Ventures Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Name of Property [Axis] Name of Property [Axis] Name of Property [Domain] Name of Property [Domain] First Insurance Center First Insurance Center [Member] First Insurance Center [Member] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Operating Partnership Partnership Interest [Member] Affiliated Entity [Member] Affiliated Entity [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Aggregate principal amount of promissory notes payable to certain affiliates Notes Payable, Related Parties Interest rate on related party promissory notes Related Party Transaction, Rate Extension period on promissory notes payable maturity at Operating Partnership's option (in years) Notes Payable, Related Parties, Maturity Optional Extension Period Notes Payable, Related Parties, Maturity Optional Extension Period Minimum amount of underwritten public offering that will trigger acceleration of maturity of related party promissory notes Notes Payable, Related Parties, Maturity Acceleration, Minimum Underwritten Public Offering Amount Notes Payable, Related Parties, Maturity Acceleration, Minimum Underwritten Public Offering Amount Interest expense related to notes exchanged for shares of common stock in 2009 Deferred Interest Exchanged For Common Stock Deferred Interest Exchanged For Common Stock Accrued interest on unsecured notes payable to related parties Interest Payable, Related Party Interest Payable, Related Party Related Party Transactions Related Party Transactions Disclosure [Text Block] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Senior Common Stock Senior Common Stock [Member] Senior Common Stock [Member] Class of Stock [Line Items] Class of Stock [Line Items] Common Stock, Number of Votes Common Stock, Number of Votes Common Stock, Number of Votes Common Stock: Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Common Stock, liquidation preference (in usd per share) Common Stock Liquidation Preference Per Share Common Stock Liquidation Preference Per Share Minimum cumulative cash dividend per share per annum payable monthly to shareholders (in usd per share) Common Stock, Dividends, Minimum Amount Per Share Per Annum Payable to Shareholders Common Stock, Dividends, Minimum Amount Per Share Per Annum Payable to Shareholders Common Stock, Dividend, Increase Triggered by Dividends on Another Class of Stock, Threshold Dividend Per Share Per Annum Common Stock, Dividend, Increase Triggered by Dividends on Another Class of Stock, Threshold Dividend Per Share Per Annum Common Stock, Dividend, Increase Triggered by Dividends on Another Class of Stock, Threshold Dividend Per Share Per Annum Common Stock, Dividend, Increase Triggered by Dividends on Another Class of Stock, Percentage of Amount over Threshold Dividend Per Share Per Annum Common Stock, Dividend, Increase Triggered by Dividends on Another Class of Stock, Percentage of Amount over Threshold Dividend Common Stock, Dividend, Increase Triggered by Dividends on Another Class of Stock, Percentage of Amount over Threshold Dividend Exchange restriction period from issuance date Common Stock, Exchange Restriction Period from Issuance Date Common Stock, Exchange Restriction Period from Issuance Date Measurement period of average stock closing price from exchange submission (in days) Common Stock, Exchange Ratio Calculation, Measurement Period of Average Stock Closing Price from Exchange Submission Date Common Stock, Exchange Ratio Calculation, Measurement Period of Average Stock Closing Price from Exchange Submission Date Minimum price per share of Class A Common Stock used to calculate exchange ratio Common Stock, Exchange Ratio Calculation, Minimum Basis Value Per Share on Class of Stock to be Exchanged to Common Stock, Exchange Ratio Calculation, Minimum Basis Value Per Share on Class of Stock to be Exchanged to Price per share of Senior Common Stock used to calculate exchange ratio Common Stock, Exchange Ratio Calculation, Basis Value Per Share on Class of Stock to be Exchanged from Common Stock, Exchange Ratio Calculation, Basis Value Per Share on Class of Stock to be Exchanged from Common Stock, shares issued Common Stock, Shares, Issued Common Stock, shares outstanding Common Stock, Shares, Outstanding Consolidated Statements of Cash Flows [Abstract] Consolidated Statements of Cash Flows [Abstract] Operating activities Net Cash Provided by (Used in) Operating Activities [Abstract] Net loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest Adjustments to reconcile net loss to net cash provided by (used in) operating activities - continuing operations: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Deferred rent Straight Line Rent Deferred ground rents Amortization of Other Deferred Charges Interest amortization and interest accrued on related party notes Amortization of Financing Costs and Discounts Below-market lease amortization Amortization of above and below Market Leases Equity in net (earnings) loss of unconsolidated joint ventures Bad debt expense Provision for Doubtful Accounts Changes in operating assets and liabilities: Increase (Decrease) in Other Operating Assets and Liabilities, Net [Abstract] Restricted cash for operating activities Increase (Decrease) in Restricted Cash for Operating Activities Rents and other receivables Increase (Decrease) in Accounts and Other Receivables Other assets Increase (Decrease) in Other Operating Assets Accounts payable and other liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net Cash Provided by (Used in) Operating Activities, Continuing Operations Cash Provided by (Used in) Operating Activities, Discontinued Operations Cash Provided by (Used in) Operating Activities, Discontinued Operations Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Investing activities Net Cash Provided by (Used in) Investing Activities [Abstract] Additions to and improvement of real estate Payments for Capital Improvements Distributions from unconsolidated joint ventures Proceeds from capital distributions received from unconsolidated joint ventures Proceeds from capital distributions received from unconsolidated joint ventures Contributions to unconsolidated joint ventures Capital contributions to unconsolidated joint ventures Capital contributions to unconsolidated joint ventures Proceeds from Sale of Property Held-for-sale Proceeds from Sale of Property Held-for-sale Payment of leasing commissions Payments for Lease Commissions Interim financing provided to unconsolidated joint ventures Origination of Notes Receivable from Related Parties Repayment of interim financing by unconsolidated joint venture Repayment of Notes Receivable from Related Parties Change in restricted cash used for capital expenditures Increase (Decrease) in Restricted Cash Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities Financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Repayment of mortgage notes payable Repayments of Secured Debt Security deposits Increase (Decrease) in Security Deposits Financing Costs Payments of Financing Costs Senior Common Stock dividends Payments of Dividends, Senior Common Stock Payments of Dividends, Senior Common Stock Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Decrease in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of period Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of period Supplemental cash flow information Supplemental Cash Flow Information [Abstract] Interest paid Interest Paid Supplemental disclosure of non-cash investing and financing activities Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Accrued dividends and distributions Dividends Payable Change in accrued capital expenditures Capital Expenditures Incurred but Not yet Paid Commitments and Contingencies Disclosure [Abstract] Schedule of Future Minimum Rental Payments for Ground Leases Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Schedule of Real Estate Properties [Table] Schedule of Real Estate Properties [Table] Wholly Owned Properties Wholly Owned Properties [Member] Unconsolidated Properties, Excluding City Square Sports Club in Phoenix, Arizona [Member] Unconsolidated Properties, Excluding City Square Sports Club in Phoenix, Arizona [Member] Unconsolidated Properties, Excluding City Square Sports Club in Phoenix, Arizona [Member] Real Estate Properties [Line Items] Real Estate Properties [Line Items] cumulative net losses cumulative net losses cumulative net losses Total stockholders’ equity (deficit) Stockholders' Equity Attributable to Parent Number of office properties Number of Real Estate Properties Number of office buildings Number of Real Estate Buildings Number of Real Estate Buildings Rentable square feet (in square feet) Net Rentable Area Number of joint ventures Number of Joint Venture The number of joint venture as of the balance sheet date. Unconsolidated joint venture ownership interest percentage Equity Method Investment, Ownership Percentage Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest Quarterly Financial Information Disclosure [Abstract] Quarterly Financial Information (unaudited) Quarterly Financial Information [Text Block] Income Statement [Abstract] Revenue Rental Operating Leases, Income Statement, Lease Revenue Tenant reimbursements Tenant Reimbursements Parking Parking Revenue Other Other Real Estate Revenue Total revenue Real Estate Revenue, Net Expenses Rental property operating Direct Costs of Leased and Rented Property or Equipment General and administrative General and Administrative Expense Interest Interest Expense Total expenses Costs and Expenses Loss from continuing operations before equity in net earnings (loss) of unconsolidated joint ventures Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Net loss Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest Net (income) loss attributable to non-controlling interests: Net Income (Loss) Attributable to Noncontrolling Interest [Abstract] Preferred unitholders in the Operating Partnership Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable Common unitholders in the Operating Partnership Noncontrolling Interest in Net Income (Loss) Other Noncontrolling Interests, Redeemable Net loss attributable to non-controlling interests Net Income (Loss) Attributable to Noncontrolling Interest Net loss attributable to common stockholders before dividends paid and accrued on Senior Common Stock Net Income (Loss) Attributable to Parent Dividends paid and accrued on Senior Common Stock Dividends on Senior Common Stock Dividends on Senior Common Stock Net loss attributable to common stockholders Net Income (Loss) Available to Common Stockholders, Basic Income (Loss) from Continuing Operations, Per Basic and Diluted Share Income (Loss) from Continuing Operations, Per Basic and Diluted Share Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic and Diluted Share Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic and Diluted Share Net income (loss) per common share - basic and diluted (in usd per share) Earnings Per Share, Basic and Diluted Weighted average number of shares outstanding - basic and diluted (in shares) Weighted Average Number of Shares Outstanding, Basic and Diluted Investments in Unconsolidated Joint Ventures Equity Method Investments and Joint Ventures Disclosure [Text Block] Fair Value Disclosures [Abstract] Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Consolidated Balance Sheets [Abstract] Consolidated Balance Sheets [Abstract] Statement [Table] Statement [Table] Common Stock Common Stock [Member] Class A Common Stock Class B Common Stock Common Class B [Member] Statement [Line Items] Statement [Line Items] ASSETS Assets [Abstract] Investments in real estate, net Real Estate Investment Property, Net Real Estate Held-for-sale Real Estate Held-for-sale Cash and cash equivalents Restricted cash Restricted Cash and Cash Equivalents Rents and other receivables, net Accounts and Notes Receivable, Net Deferred rents Deferred Rent Receivables, Net Intangible assets, net Finite-lived Intangible Assets, Net Excluding Off-market (Favorable and Unfavorable) Leases and Goodwill Finite-lived Intangible Assets, Net Excluding Off-market (Favorable and Unfavorable) Leases and Goodwill Other assets, net Other Assets Goodwill Goodwill Investments in unconsolidated joint ventures Total assets Assets LIABILITIES AND EQUITY (DEFICIT) Liabilities and Equity [Abstract] Mortgage and other loans, net Secured Debt, Net of Discount Secured Debt, Net of Discount Unsecured notes payable to current and former related parties Accounts payable and other liabilities Accounts Payable and Accrued Liabilities Accrued interest payable to current and former related parties (Note 10) Acquired below-market leases, net Off-market Lease, Unfavorable Liabilities of Real Estate Held-for-sale Liabilities of Real Estate Held-for-sale Liabilities of Real Estate Held-for-sale Total liabilities Liabilities Commitments and contingencies (Note 11) Commitments and Contingencies Equity (cumulative deficit): Equity [Abstract] Preferred Stock, $0.0001 par value per share, 100,000,000 shares authorized, one share of Proportionate Voting Preferred Stock issued and outstanding at December 31, 2015 and 2014 Preferred Stock, Value, Issued Common Stock, Issued Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Cumulative deficit Retained Earnings (Accumulated Deficit) Total stockholders’ equity (deficit) Non-controlling interests: Noncontrolling Interest [Abstract] Unitholders in the Operating Partnership Noncontrolling Interest in Operating Partnerships Total equity (deficit) Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total liabilities and equity (deficit) Liabilities and Equity Debt Disclosure [Abstract] Schedule of Mortgage and Other Loans, net of discount or premium Schedule of Debt [Table Text Block] Schedule of Changes in Total Equity (Deficit) Schedule of Stockholders Equity [Table Text Block] Schedule of Basic and Diluted Loss Per Share/Unit Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Stockholders' Equity [Table] Schedule of Stockholders' Equity [Table] Schedule of Stockholders' Equity [Table] Total Equity (Deficit) Parent [Member] Schedule of Stockholders' Equity [Line Items] Schedule of Stockholders' Equity [Line Items] Schedule of Stockholders' Equity [Line Items] Changes in Total Equity (Deficit): Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance at beginning of period Net income (loss) Dividends and distributions Dividends and Distributions to Noncontrolling Interest Holders Dividends and Distributions to Noncontrolling Interest Holders Balance at end of period Accounts Payable and Accrued Liabilities [Abstract] Schedule of Accounts Payable and Other Liabilities Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Intangible Assets and Acquired Below-Market Leases, net Intangible Assets Disclosure [Text Block] Line of Credit Facility [Table] Line of Credit Facility [Table] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] FHB Credit Facility First Hawaiian Bank Credit Facility [Member] First Hawaiian Bank Credit Facility [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Revolving Line of Credit Revolving Credit Facility [Member] Shidler Equities, L.P. Shidler Equities, L.P. [Member] Shidler Equities, L.P. [Member] Collateral Type [Axis] Collateral Type [Axis] Collateral Type [Axis] Collateral Type [Domain] Collateral Type [Domain] Collateral Type [Domain] Certificates of Deposit Certificates of Deposit [Member] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Domain] Guarantor Obligations, Nature [Domain] Indemnification Agreement Indemnification Agreement [Member] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Revolving line of credit, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Description of variable rate basis Debt Instrument, Description of Variable Rate Basis Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Revolving line of credit, amount outstanding Long-term Line of Credit Interest expense recognized to Lender Interest Expense, Debt, Excluding Amortization Amount of collateral pledged by related party Line of Credit Facility, Collateral Amount Line of Credit Facility, Collateral Amount Interest rate on withdrawn amount of collateral pledged by related party Guarantor Obligations, Withdrawal of Line of Credit Facility Collateral, Interest Rate Guarantor Obligations, Withdrawal of Line of Credit Facility Collateral, Interest Rate Collateral pledged by related party, annual fee percentage Line of Credit Facility, Collateral Fees, Percent Line of Credit Facility, Collateral Fees, Percent Annual fee for collateral Line of Credit Facility, Collateral Fees, Amount Schedule of Quarterly Financial Information Schedule of Quarterly Financial Information [Table Text Block] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Beneficial Owner, James C. Reynolds Beneficial Owner, James C. Reynolds [Member] Beneficial Owner, James C. Reynolds [Member] Shidler Pacific Advisors Shidler Pacific Advisors [Member] Shidler Pacific Advisors [Member] Unconsolidated Joint Venture Unconsolidated joint venture [Member] Unconsolidated joint venture [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Accounts Payable and Other Liabilities Accounts Payable and Other Liabilities [Member] Accounts Payable and Other Liabilities [Member] Corporate Quarterly Management Fee Corporate Management Fee, Quarterly Corporate Management Fee, Quarterly Property Management Fee Percentage Property Management Fee, Percentage of Rental Cash Receipts Property Management Fee, Percentage of Rental Cash Receipts Management Services Related Fees Paid to Advisor Property Management Fee [Abstract] Property Management Fees Property Management Fees, Amount Paid Property Management Fees, Amount Paid Corporate Management Fees Corporate Management Fees, Amount Paid Corporate Management Fees, Amount Paid Construction Management and Other Fees Construction Management and Other Fees, Amount Paid Construction Management and Other Fees, Amount Paid Total Management Service Related Fee, Amount Paid Management Service Related Fee, Amount Paid Lease Rent Revenue from Related Parties Revenue from Related Parties Accounts Payable, Related Parties Accounts Payable, Related Parties Tax indemnity accrual (Note 11) Tax Indemnity Accrual Tax Indemnity Accrual Interim financing provided to unconsolidated joint venture Interim financing provided to unconsolidated joint venture, maximum lending capacity Interim financing provided to unconsolidated joint venture, maximum lending capacity Interim financing provided to unconsolidated joint venture, interest rate Interim financing provided to unconsolidated joint venture, interest rate Interim financing provided to unconsolidated joint venture, interest rate Allowance for doubtful accounts Allowance for Doubtful Accounts Receivable Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Accounting Policies [Abstract] Summary of Significant Accounting Policies Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Accounts payable Accounts Payable Interest payable Interest Payable Deferred revenue Deferred Revenue Security deposits Security Deposit Liability Deferred straight-line ground rent Deferred Rent Credit Accrued distributions attributable to Preferred Units Accrued expenses Accrued Liabilities Asset retirement obligations Asset Retirement Obligation Total accounts payable and other liabilities Use of Estimates in Financial Statements Use of Estimates, Policy [Policy Text Block] Investments in Real Estate Real Estate, Policy [Policy Text Block] Impairment of Long-Lived Assets Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Investments in Unconsolidated Joint Ventures Equity Method Investments, Policy [Policy Text Block] Discontinued Operations Discontinued Operations, Policy [Policy Text Block] Goodwill Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Revenue Recognition Revenue Recognition, Deferred Revenue [Policy Text Block] Tenant Receivables Receivables, Policy [Policy Text Block] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Mortgage and Other Loans Debt, Policy [Policy Text Block] Deferred Loan Fees Deferred Charges, Policy [Policy Text Block] Repairs, Maintenance and Major Improvements Repairs, Maintenance and Major Improvements [Policy Text Block] Repairs, Maintenance and Major Improvements [Policy Text Block] Leasing Commissions Leasing Commissions [Policy Text Block] Leasing Commissions [Policy Text Block] [Policy Text Block] Depreciation and Amortization Depreciation, Depletion, and Amortization [Policy Text Block] Non-Controlling Interests Consolidation, Subsidiaries or Other Investments, Consolidated Entities, Policy [Policy Text Block] Preferred Units Preferred Units [Policy Text Block] Preferred Units [Policy Text Block] Earnings (Loss) per Share Earnings Per Share, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Schedule of Related Party Transactions Schedule of Related Party Transactions [Table Text Block] Other Assets [Abstract] Schedule of Other Assets, net Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block] Leases [Abstract] 2015 Operating Leases, Future Minimum Payments Receivable, Current 2016 Operating Leases, Future Minimum Payments Receivable, in Two Years 2017 Operating Leases, Future Minimum Payments Receivable, in Three Years 2018 Operating Leases, Future Minimum Payments Receivable, in Four Years 2019 Operating Leases, Future Minimum Payments Receivable, in Five Years Thereafter Operating Leases, Future Minimum Payments Receivable, Thereafter Total future minimum base rental revenue Operating Leases, Future Minimum Payments Receivable Lease termination fee revenue Operating Leases, Lease Termination Fee Revenue Operating Leases, Lease Termination Fee Revenue Operating leases, percentage rental income Operating Leases, Income Statement, Percentage Revenue Accounts Payable and Other Liabilities Accounts Payable and Accrued Liabilities Disclosure [Text Block] Other Assets, net Other Assets Disclosure [Text Block] Deferred loan fees, net of accumulated amortization of $1.8 million and $1.7 million at December 31, 2015 and 2014, respectively Deferred Finance Costs, Net Prepaid expenses Prepaid Expense Total other assets, net Accumulated amortization Accumulated Amortization, Deferred Finance Costs Balance Sheet Parenthetical [Abstract] Balance Sheet Parenthetical [Abstract] Preferred Stock, par value per share (in usd per share) Preferred Stock, Par or Stated Value Per Share Preferred Stock, shares authorized Preferred Stock, Shares Authorized Preferred Stock, shares outstanding Preferred Stock, Shares Outstanding Common Stock, par value per share (in usd per share) Common Stock, Par or Stated Value Per Share Common Stock, shares authorized Common Stock, Shares Authorized Common Stock , liquidation preference per share (in usd per share) Common Stock, cumulative liquidation preference Common Stock, Cumulative Liquidation Preference Common Stock, Cumulative Liquidation Preference Carrying value, mortgage and other loans, net Fair value, mortgage and other loans, net Debt Instrument, Fair Value Disclosure Leasing commissions Leases in place Tenant relationship costs Other intangibles Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] 2015 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 2016 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2017 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2019 Finite-Lived Intangible Assets, Amortization Expense, Year Five Thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five Amortization Period (Years) Finite-Lived Intangible Asset, Useful Life Below Market Lease, Net, Amortization Income, Fiscal Year Maturity [Abstract] Below Market Lease, Net, Amortization Income, Fiscal Year Maturity [Abstract] 2015 Below Market Lease, Amortization Income, Next Twelve Months 2016 Below Market Lease, Amortization Income, Year Two 2017 Below Market Lease, Amortization Income, Year Three 2018 Below Market Lease, Amortization Income, Year Four 2019 Below Market Lease, Amortization Income, Year Five Thereafter Below Market Lease, Amortization Income, after Year Five Amortization Period (Years) Below Market Lease, Useful Life Below Market Lease, Useful Life Schedule of Future Minimum Base Rentals on Non-Cancellable Office Leases Total revenue Net income (loss) attributable to common stockholders Net income (loss) per common share - basic and diluted (in usd per share) Land and land improvements Land and Land Improvements Building and building improvements Investment Building and Building Improvements Tenant improvements Tenant Improvements Construction in progress Development in Process Furniture, fixtures and equipment Fixtures and Equipment, Gross Investments in real estate Real Estate Investment Property, at Cost Less: accumulated depreciation Real Estate Investment Property, Accumulated Depreciation Investments in real estate, net Investments in Real Estate, net Real Estate Disclosure [Text Block] Organization and Ownership Nature of Operations [Text Block] Summary of Significant Accounting Policies [Table] Summary of Significant Accounting Policies [Table] Summary of Significant Accounting Policies [Table] Mortgages Mortgages [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Clifford Center Clifford Center [Member] Clifford Center [Member] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Buildings and Improvements Building and Building Improvements [Member] Furniture, Fixtures and Equipment Furniture, Fixtures and Equipment [Member] Furniture, Fixtures and Equipment [Member] Summary of Significant Accounting Policies [Line Items] Significant Policies [Line Items] [Line Items] Significant Policies [Line Items] [Line Items] Impairment of Real Estate Impairment of Real Estate Net Proceeds from Sale of Held For Sale Asset Significant Acquisitions and Disposals, Acquisition Costs or Sale Proceeds Capital Expenditures and Leasing Costs Contractual Obligation, Fiscal Year Maturity [Abstract] Expected capital expenditures and lease costs through 2013 Purchase Obligation, Due in Next Twelve Months Debt Long-term Debt, Unclassified [Abstract] Secured Debt, Net of Discount, Held For Sale Secured Debt, Net of Discount, Held For Sale Secured Debt, Net of Discount, Held For Sale Total consolidated debt Long-term Debt Weighted average interest rate Long-term Debt, Weighted Average Interest Rate Weighted average remaining term Long-term Debt, Weighted Average Remaining Term Long-term Debt, Weighted Average Remaining Term Acquired Above-Market and Below-Market Leases [Abstract] Intangible Assets and Acquired Above- and Below-Market Lease Liabilities [Abstract] Intangible Assets and Acquired Above- and Below-Market Lease Liabilities [Abstract] Asset Impairment Charges Asset Impairment Charges [Abstract] Non-cash asset impairment of property classified as Discontinued operations Impairment of Long-Lived Assets to be Disposed of Non-cash impairment charge to write off investment in unconsolidated joint venture Equity Method Investment, Other than Temporary Impairment Goodwill Goodwill [Abstract] Goodwill [Abstract] Number of reporting units Number of Reporting Units Goodwill, net Revenue Recognition Revenue Recognition [Abstract] Straight line rent adjustments included in rental revenues Straight Line Rent Adjustments Balance Sheet Related Disclosures Balance Sheet Related Disclosures [Abstract] Lease security available in security deposits Properties and equipment, estimated useful life Property, Plant and Equipment, Useful Life Equity Income Taxes Income Tax Disclosure [Abstract] Minimum percentage of taxable income distribution to stockholders to qualify as REIT Minimum Percentage of Taxable Income Distribution to Stockholders to Qualify as REIT Minimum Percentage of Taxable Income Distribution to Stockholders to Qualify as REIT Minimum percentage of gross income derived from qualifying sources to qualify as REIT Minimum Percentage of Gross Income Derived from Qualifying Sources to Qualify as REIT Minimum Percentage of Gross Income Derived from Qualifying Sources to Qualify as REIT Goodwill, Written off Related to Sale of Business Unit Goodwill, Written off Related to Sale of Business Unit Mortgage and Other Loans Debt Disclosure [Text Block] Discontinued Operations and Disposal Groups [Abstract] Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block] Equity (Deficit) and Earnings (Loss) per Share Stockholders' Equity Note Disclosure [Text Block] Disposal Groups, Including Discontinued Operations [Table] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Consideration For Held For Sale Asset Disposal Group, Including Discontinued Operation, Consideration Disposal Group, Including Discontinued Operation, Revenue Disposal Group, Including Discontinued Operation, Revenue Disposal Group, Including Discontinued Operation, Operating Expense Disposal Group, Including Discontinued Operation, Operating Expense Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, before Income Tax Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, before Income Tax Gain (Loss) on Sale of Properties Gain (Loss) on Sale of Properties Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Disposition Activity Mergers, Acquisitions and Dispositions Disclosures [Text Block] Document and Entity Information [Abstract] Document and Entity Information [Abstract] Entities [Table] Entities [Table] Entity Information [Line Items] Entity Information [Line Items] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Public Float Entity Public Float Net loss attributable to common stockholders - basic and diluted Weighted average number of common shares (in shares) Weighted Average Number of Shares Outstanding, Basic Potentially dilutive common shares (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Weighted average number of shares outstanding - basic and diluted (in shares) Net loss per common share - basic and diluted (in usd per share) Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Anti-dilutive Class A Common Stock excluded from computation of earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Payments of Dividends, Senior Common Stock Equity Method Investee, Name [Axis] Investment, Name [Axis] Equity Method Investee, Name [Domain] Investment, Name [Domain] Number of office buildings held by unconsolidated joint ventures Rentable square feet held by unconsolidated joint ventures (in square feet) Consolidated Statements of Equity [Abstract] Consolidated Statements of Equity [Abstract] Additional Paid-In Capital Additional Paid-in Capital [Member] Cumulative Deficit Retained Earnings [Member] Total Stockholders’ Equity (Cumulative Deficit) Balance at beginning of period, shares Shares, Issued Net loss Distributions Dividends, Common Stock Balance at end of period, shares Schedule of Identifiable Intangible Assets and Acquired Above- and Below-Market Leases Schedule of Finite-Lived Intangible Assets [Table Text Block] Schedule of Intangible Assets, Acquired Above- and Below-Market Lease Amortization Finite-lived Intangible Assets Amortization Expense [Table Text Block] Schedule of Estimated Net Amortization of Intangible Assets and Acquired Above- and Below-Market Leases for the Next Five Years Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Pan Am Building Pan Am Building [Member] Pan Am Building [Member] Waterfront Plaza Waterfront Plaza [Member] Waterfront Plaza [Member] Davies Pacific Center Davies Pacific Center [Member] Davies Pacific Center [Member] Mortgage Loan 6.17% Mortgage Loan 6 Point 17 Percent [Member] Mortgage Loan 6.17% [Member] Mortgage Loan 6.37% (may be defeased) Mortgage Loan 6 Point 37 Percent, May be Defeased [Member] Mortgage Loan 6.37%, May be Defeased [Member] Mortgage Loan 6.37% Mortgage Loan 6 Point 37 Percent [Member] Mortgage Loan 6.37% [Member] Mortgage Loan 5.86% Mortgage Loan 5 Point 86 Percent [Member] Mortgage Loan 5.86% [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Interest rate Debt Instrument, Interest Rate, Stated Percentage Effective interest rate at period end Line of Credit Facility, Interest Rate at Period End Minimum Future Lease Rentals Leases of Lessor Disclosure [Text Block] Commitments and Contingencies [Table] Commitments and Contingencies [Table] Commitments and Contingencies [Table] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Tax Protection Agreements Tax Protection Agreements [Member] Tax Protection Agreements [Member] Affiliated Entity [Member] Commitments and Contingencies [Line Items] Commitments and Contingencies [Line Items] Commitments and Contingencies [Line Items] Annual rental obligations, fixed increase intervals (in years) Ground Leases, Annual Rental Obligation, Fixed Increase, Intervals Ground Leases, Annual Rental Obligation, Fixed Increase, Intervals Percent of fair market value of land used to determine annual rental obligation Ground Leases, Annual Rental Obligation Fixed Increase, Percent of Fair Market Value of Land Ground Leases, Annual Rental Obligation Fixed Increase, Percent of Fair Market Value of Land Ground lease rent expense, including minimum and percentage rent Ground Leases, Rent Expense Ground Leases, Rent Expense Ground Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] 2015 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2016 Operating Leases, Future Minimum Payments, Due in Two Years 2017 Operating Leases, Future Minimum Payments, Due in Three Years 2018 Operating Leases, Future Minimum Payments, Due in Four Years 2019 Operating Leases, Future Minimum Payments, Due in Five Years Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Total future minimum ground lease payments Operating Leases, Future Minimum Payments Due Number of single tenants accounting for more than 10% or more of total annualized base rent Number of Major Tenants Accounting for More than 10 Percent or More of Annualized Base Rent Number of Major Tenants Accounting for More than 10 Percent or More of Annualized Base Rent Asset retirement obligation Restriction period on sale of contributed properties not providing continued tax deferral to Venture (in years) Restriction Period on Sale of Contributed Properties Not Providing Continued Tax Deferral to Related Party Restriction Period on Sale of Contributed Properties Not Providing Continued Tax Deferral to Related Party Tax Indemnity Settlement Payment Tax Indemnity Settlement Payment Tax Indemnity Settlement Payment Schedule of Dividends and Distributions [Table] Schedule of Dividends and Distributions [Table] Schedule of Dividends and Distributions [Table] Schedule of Dividends and Distributions [Line Items] Schedule of Dividends and Distributions [Line Items] Schedule of Dividends and Distributions [Line Items] Authorized daily dividends annualized rate Common Stock, Daily Dividends, Authorized, Annualized Rate Common Stock, Daily Dividends, Authorized, Annualized Rate Cumulative Unpaid Dividends Attributable to Senior Common Stock Cumulative Unpaid Dividends Attributable to Senior Common Stock Cumulative Unpaid Dividends Attributable to Senior Common Stock