Organization	3 Months Ended
Mar. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	Organization Griffin Capital Essential Asset REIT II, Inc., a Maryland corporation (the “Company”), was formed on November 20, 2013 under the Maryland General Corporation Law (the "MGCL") and qualified as a real estate investment trust (“REIT”) commencing with the year ended December 31, 2015. The Company was organized primarily with the purpose of acquiring single tenant net lease properties that are considered essential to the occupying tenant, and has used a substantial amount of the net proceeds from its initial public offering ("IPO") to invest in such properties. The Company’s year end is December 31. On December 14, 2018, the Company, Griffin Capital Essential Asset Operating Partnership II, L.P. (the "Operating Partnership"), Globe Merger Sub, LLC, a wholly-owned subsidiary of the Company (“Merger Sub”), Griffin Capital Essential Asset REIT, Inc. ("GCEAR"), and Griffin Capital Essential Asset Operating Partnership, L.P. (the "GCEAR Operating Partnership") entered into an Agreement and Plan of Merger (the “Merger Agreement”). On April 30, 2019, pursuant to the Merger Agreement, (i) GCEAR merged with and into Merger Sub, with Merger Sub surviving as a direct, wholly-owned subsidiary of the Company (the “Company Merger”) and (ii) the Operating Partnership merged with and into the GCEAR Operating Partnership (the “Partnership Merger” and, together with the Company Merger, the “Mergers”), with the GCEAR Operating Partnership surviving the Partnership Merger. At such time, (i) in accordance with the applicable provisions of the Maryland General Corporation Law and the Maryland Limited Liability Company Act, the separate existence of GCEAR ceased and (ii) in accordance with the Delaware Revised Uniform Limited Partnership Act, the separate existence of the Operating Partnership ceased. In addition, on April 30, 2018, following the Partnership Merger, Merger Sub merged into the Company. Much of the historical information regarding the Company's structure and agreements presented in this Note 1 and throughout the rest of these Notes to Consolidated Financial Statements has materially changed because of the Mergers, but did apply as of March 31, 2019. See Note 12, Subsequent Events, for additional details. Prior to the execution of the Merger Agreement, on December 14, 2018, GCEAR, a non-traded REIT formerly sponsored by Griffin Capital Company, LLC ("GCC"), entered into a series of transactions and became self-managed (the “Self Administration Transaction”) and succeeded to the advisory, asset management and property management arrangements formerly in place for the Company. Accordingly, the sponsor of the Company changed from GCC to Griffin Capital Real Estate Company, LLC (the "Sponsor" or "GRECO") until the Company Merger was consummated. See Note 12, Subsequent Events, for additional details. Griffin Capital Essential Asset Advisor II, LLC, a Delaware limited liability company (the “Advisor”), was formed on November 19, 2013. GRECO is the sole member of the Advisor. As of December 14, 2018, GRECO is owned by Griffin Capital Essential Asset Operating Partnership, L.P. (the "GCEAR Operating Partnership") and Griffin Capital Essential Asset TRS, Inc., a Delaware corporation. The Advisor was responsible for managing the Company’s affairs on a day-to-day basis and identifying and making acquisitions and investments on behalf of the Company under the terms of the Advisory Agreement (as defined below). Griffin Capital Securities, LLC (the “Dealer Manager”) is a Delaware limited liability company and is a wholly-owned subsidiary of Griffin Capital, LLC (“GC”), a Delaware limited liability company. The Company’s former sponsor, GCC, is the sole member of GC. The Dealer Manager is responsible for marketing the Company’s shares offered pursuant to the Company's public offerings. The Company’s property manager is Griffin Capital Essential Asset Property Management II, LLC, a Delaware limited liability company (the “Property Manager”), which was formed on November 19, 2013 to manage the Company’s properties, or provide oversight of other property managers engaged by the Company or an affiliate of the Company. The Property Manager derives substantially all of its income from the property management services it performs for the Company. The Property Manager is owned by Griffin Capital Property Management, LLC, which is owned by GRECO. The Operating Partnership owned, directly or indirectly, all of the properties acquired by the Company. The Operating Partnership conducted certain activities through the Company’s taxable REIT subsidiary, Griffin Capital Essential Asset TRS II, Inc., a Delaware corporation (the “TRS”), formed on November 22, 2013, which is a wholly-owned subsidiary of the Operating Partnership. The TRS had no activity as of March 31, 2019. On September 20, 2017, the Company commenced a follow-on offering of up to $2.2 billion of shares (the "Follow-On Offering"), consisting of up to $2.0 billion of shares in the Company's primary offering and $0.2 billion of shares pursuant to the distribution reinvestment plan ("DRP"). Pursuant to the Follow-On Offering, the Company offered to the public four new classes of shares of common stock: Class T shares, Class S shares, Class D shares, and Class I shares (the “New Shares”) with net asset value (“NAV”) based pricing. The share classes have different selling commissions, dealer manager fees, and ongoing distribution fees. In connection with the Follow-On Offering, the Company reclassified all Class T and Class I shares sold in its IPO as "Class AA" and "Class AAA" shares, respectively. On September 20, 2017, the Company entered into an amended and restated advisory agreement (the "Advisory Agreement") with the Advisor and the Operating Partnership, which replaced the original advisory agreement and modified various provisions including the fees and expense reimbursements payable to the Advisor. See Note 9, Related Party Transactions, for additional details. In connection with the Follow-On Offering, the Company's board of directors (the "Board") adopted an amended and restated DRP effective as of September 30, 2017 to include all of its shares, including the New Shares, under the DRP. In connection with the Follow-On Offering, the Board adopted a share redemption program for the New Shares (and IPO shares that have been held for four years or longer) (the “SRP”). On June 4, 2018, the Board amended and restated the SRP to allow stockholders of the Company’s IPO shares to utilize the SRP, effective as of July 5, 2018. Prior to that time, the Company had a separate share redemption program for its IPO shares. See Note 7, Equity, for additional details. Under the SRP, stockholders are allowed to redeem their shares after a one-year holding period at a redemption price equal to the NAV per share for the applicable class generally on the 13th day of the month prior to quarter end. On August 16, 2018, the Board approved the temporary suspension of the primary portion of the Follow-On Offering, effective August 17, 2018. On December 12, 2018, the Company also temporarily suspended the DRP offering and the SRP. Beginning in January 2019, all distributions by the Company were paid in cash. The SRP was officially suspended as of January 19, 2019. On February 15, 2019, the Board determined it was in the best interests of the Company to reinstate the DRP effective with the February distribution paid on or around March 1, 2019.

Organization

Griffin Capital Essential Asset REIT II, Inc., a Maryland corporation (the “Company”), was formed on November 20, 2013 under the Maryland General Corporation Law (the "MGCL") and qualified as a real estate investment trust (“REIT”) commencing with the year ended December 31, 2015. The Company was organized primarily with the purpose of acquiring single tenant net lease properties that are considered essential to the occupying tenant, and has used a substantial amount of the net proceeds from its initial public offering ("IPO") to invest in such properties. The Company’s year end is December 31.

On December 14, 2018, the Company, Griffin Capital Essential Asset Operating Partnership II, L.P. (the "Operating Partnership"), Globe Merger Sub, LLC, a wholly-owned subsidiary of the Company (“Merger Sub”), Griffin Capital Essential Asset REIT, Inc. ("GCEAR"), and Griffin Capital Essential Asset Operating Partnership, L.P. (the "GCEAR Operating Partnership") entered into an Agreement and Plan of Merger (the “Merger Agreement”). On April 30, 2019, pursuant to the Merger Agreement, (i) GCEAR merged with and into Merger Sub, with Merger Sub surviving as a direct, wholly-owned subsidiary of the Company (the “Company Merger”) and (ii) the Operating Partnership merged with and into the GCEAR Operating Partnership (the “Partnership Merger” and, together with the Company Merger, the “Mergers”), with the GCEAR Operating Partnership surviving the Partnership Merger. At such time, (i) in accordance with the applicable provisions of the Maryland General Corporation Law and the Maryland Limited Liability Company Act, the separate existence of GCEAR ceased and (ii) in accordance with the Delaware Revised Uniform Limited Partnership Act, the separate existence of the Operating Partnership ceased. In addition, on April 30, 2018, following the Partnership Merger, Merger Sub merged into the Company. Much of the historical information regarding the Company's structure and agreements presented in this Note 1 and throughout the rest of these Notes to Consolidated Financial Statements has materially changed because of the Mergers, but did apply as of March 31, 2019. See Note 12, Subsequent Events, for additional details.

Prior to the execution of the Merger Agreement, on December 14, 2018, GCEAR, a non-traded REIT formerly sponsored by Griffin Capital Company, LLC ("GCC"), entered into a series of transactions and became self-managed (the “Self Administration Transaction”) and succeeded to the advisory, asset management and property management arrangements formerly in place for the Company. Accordingly, the sponsor of the Company changed from GCC to Griffin Capital Real Estate Company, LLC (the "Sponsor" or "GRECO") until the Company Merger was consummated. See Note 12, Subsequent Events, for additional details.

Griffin Capital Essential Asset Advisor II, LLC, a Delaware limited liability company (the “Advisor”), was formed on November 19, 2013. GRECO is the sole member of the Advisor. As of December 14, 2018, GRECO is owned by Griffin Capital Essential Asset Operating Partnership, L.P. (the "GCEAR Operating Partnership") and Griffin Capital Essential Asset TRS, Inc., a Delaware corporation. The Advisor was responsible for managing the Company’s affairs on a day-to-day basis and identifying and making acquisitions and investments on behalf of the Company under the terms of the Advisory Agreement (as defined below).

Griffin Capital Securities, LLC (the “Dealer Manager”) is a Delaware limited liability company and is a wholly-owned subsidiary of Griffin Capital, LLC (“GC”), a Delaware limited liability company. The Company’s former sponsor, GCC, is the sole member of GC. The Dealer Manager is responsible for marketing the Company’s shares offered pursuant to the Company's public offerings.

The Company’s property manager is Griffin Capital Essential Asset Property Management II, LLC, a Delaware limited liability company (the “Property Manager”), which was formed on November 19, 2013 to manage the Company’s properties, or provide oversight of other property managers engaged by the Company or an affiliate of the Company. The Property Manager derives substantially all of its income from the property management services it performs for the Company. The Property Manager is owned by Griffin Capital Property Management, LLC, which is owned by GRECO.

The Operating Partnership owned, directly or indirectly, all of the properties acquired by the Company. The Operating Partnership conducted certain activities through the Company’s taxable REIT subsidiary, Griffin Capital Essential Asset TRS II, Inc., a Delaware corporation (the “TRS”), formed on November 22, 2013, which is a wholly-owned subsidiary of the Operating Partnership. The TRS had no activity as of March 31, 2019.

On September 20, 2017, the Company commenced a follow-on offering of up to $2.2 billion of shares (the "Follow-On Offering"), consisting of up to $2.0 billion of shares in the Company's primary offering and $0.2 billion of shares pursuant to the distribution reinvestment plan ("DRP").

Pursuant to the Follow-On Offering, the Company offered to the public four new classes of shares of common stock: Class T shares, Class S shares, Class D shares, and Class I shares (the “New Shares”) with net asset value (“NAV”) based pricing. The share classes have different selling commissions, dealer manager fees, and ongoing distribution fees. In connection with the Follow-On Offering, the Company reclassified all Class T and Class I shares sold in its IPO as "Class AA" and "Class AAA" shares, respectively.

On September 20, 2017, the Company entered into an amended and restated advisory agreement (the "Advisory Agreement") with the Advisor and the Operating Partnership, which replaced the original advisory agreement and modified various provisions including the fees and expense reimbursements payable to the Advisor. See Note 9, Related Party Transactions, for additional details.

In connection with the Follow-On Offering, the Company's board of directors (the "Board") adopted an amended and restated DRP effective as of September 30, 2017 to include all of its shares, including the New Shares, under the DRP.

In connection with the Follow-On Offering, the Board adopted a share redemption program for the New Shares (and IPO shares that have been held for four years or longer) (the “SRP”). On June 4, 2018, the Board amended and restated the SRP to allow stockholders of the Company’s IPO shares to utilize the SRP, effective as of July 5, 2018. Prior to that time, the Company had a separate share redemption program for its IPO shares. See Note 7, Equity, for additional details. Under the SRP, stockholders are allowed to redeem their shares after a one-year holding period at a redemption price equal to the NAV per share for the applicable class generally on the 13th day of the month prior to quarter end.

On August 16, 2018, the Board approved the temporary suspension of the primary portion of the Follow-On Offering, effective August 17, 2018. On December 12, 2018, the Company also temporarily suspended the DRP offering and the SRP. Beginning in January 2019, all distributions by the Company were paid in cash. The SRP was officially suspended as of January 19, 2019.

On February 15, 2019, the Board determined it was in the best interests of the Company to reinstate the DRP effective with the February distribution paid on or around March 1, 2019.