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Equity - Narrative (Details) - USD ($) |  |  |  |  |  | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 10, 2019 | May 01, 2019 | Apr. 30, 2019 | Dec. 14, 2018 | Sep. 20, 2017 | Jun. 30, 2019 | May 06, 2019 | Dec. 31, 2018 | Jun. 30, 2015
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from issuance of private placement |  |  |  |  | $ 2,200,000,000 |  |  |  |
Implied EA-1 common stock issued in consideration |  |  | 78,100,000 |  |  |  |  |  |
Number of shares outstanding (in shares) |  | 252,863,421 | 78,054,934 |  |  | 243,610,554 |  | 174,470,284 |
Self tender offer |  |  |  |  |  |  | $ 100,000,000 |  |
Common Stock, par value (in usd per share) |  |  |  |  |  | $ 0.001 | $ 0.001 | $ 0.001 |
Cash purchase price offered (in usd per share) | $ 9.56 |  |  |  |  |  |  |  |
Aggregate purchase price | $ 98,900,000 |  |  |  |  |  |  |  |
Shares sold, percent of Company's issued and outstanding shares (percent) | 4.10% |  |  |  |  |  |  |  |
Deferred compensation liability |  |  |  |  |  | $ 8,600,000 |  |  |
Share Redemption Program |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Minimum ownership balance (shares) |  |  |  |  |  | 2,500 |  |  |
Stock redemption quarterly cap |  |  |  |  |  | 37,400,000 |  |  |
Private Placement |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from issuance of private placement |  |  |  |  | 2,000,000,000 | $ 2,700,000,000 |  |  |
Implied EA-1 common stock issued in consideration |  |  |  |  |  | 277,814,656 |  |  |
Signature Office REIT Merger |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Implied EA-1 common stock issued in consideration |  |  |  |  |  |  |  |  | 43,772,611
Distribution Reinvestment Plan |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from issuance of private placement |  |  |  |  | $ 200,000,000 |  |  |  |
Implied EA-1 common stock issued in consideration |  |  |  |  |  | 268,100,000 |  | 252,800,000 |
Period for written notice |  |  |  |  |  | 10 days |  |  |
DRP issued |  |  |  |  |  | 77,691,333 |  |  |
Maximum | Share Redemption Program |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Aggregate redemption of Company's shares (percent) |  |  |  |  |  | 5.00% |  |  |
RSUs |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Installment vesting of RSUs (percent) |  | 25.00% |  |  |  |  |  |  |
Mr. Escalante | RSUs |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Restricted stock units issued to executives (shares) |  | 732,218 |  |  |  |  |  |  |
Mr. Bitar | RSUs |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Restricted stock units issued to executives (shares) |  | 104,603 |  |  |  |  |  |  |
Mr. Hirsch | RSUs |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Restricted stock units issued to executives (shares) |  | 67,992 |  |  |  |  |  |  |
Mr. Sohn | RSUs |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Restricted stock units issued to executives (shares) |  | 52,301 |  |  |  |  |  |  |
Mr. Tausk | RSUs |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Restricted stock units issued to executives (shares) |  | 52,301 |  |  |  |  |  |  |
Chief Executive Officer |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Employment Agreement, Initial Term |  |  |  | 5 years |  |  |  |  |
Employment Agreement, Renewal Term |  |  |  | 1 year |  |  |  |  |
Common Class T |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Number of shares outstanding (in shares) |  |  |  |  |  | 229,120 |  |  |
Cash purchase price offered (in usd per share) |  |  |  |  |  |  | 9.66 |  |
Common Class S |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Number of shares outstanding (in shares) |  |  |  |  |  | 283 |  |  |
Cash purchase price offered (in usd per share) |  |  |  |  |  |  | 9.65 |  |
Common Class D |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Number of shares outstanding (in shares) |  |  |  |  |  | 19,499 |  |  |
Cash purchase price offered (in usd per share) |  |  |  |  |  |  | 9.64 |  |
Common Class I |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Number of shares outstanding (in shares) |  |  |  |  |  | 822,666 |  |  |
Cash purchase price offered (in usd per share) |  |  |  |  |  |  | 9.64 |  |
Common Class A |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Number of shares issued (in shares) | 1,046,024 |  |  |  |  |  |  |  |
Number of shares outstanding (in shares) |  |  |  |  |  | 24,925,347 |  |  |
Cash purchase price offered (in usd per share) |  |  |  |  |  |  | 9.56 |  |
Shares sold, percent of all shares tendered (percent) | 36.70% |  |  |  |  |  |  |  |
Common Class AA |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Number of shares issued (in shares) | 2,060,669 |  |  |  |  |  |  |  |
Number of shares outstanding (in shares) |  |  |  |  |  | 48,180,929 |  |  |
Cash purchase price offered (in usd per share) |  |  |  |  |  |  | 9.56 |  |
Shares sold, percent of all shares tendered (percent) | 76.20% |  |  |  |  |  |  |  |
Common Class AAA |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Number of shares issued (in shares) | 23,879 |  |  |  |  |  |  |  |
Number of shares outstanding (in shares) |  |  |  |  |  | 959,152 |  |  |
Cash purchase price offered (in usd per share) |  |  |  |  |  |  | 9.56 |  |
Shares sold, percent of all shares tendered (percent) | 100.00% |  |  |  |  |  |  |  |
Common Class E |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Number of shares issued (in shares) | 7,217,570 |  | 174,981,547 |  |  |  |  |  |
Number of shares outstanding (in shares) |  |  |  |  |  | 168,473,558 |  |  |
Common Stock, par value (in usd per share) |  |  | $ 0.001 |  |  |  |  |  |
Cash purchase price offered (in usd per share) |  |  |  |  |  |  | $ 9.56 |  |
Shares sold, percent of all shares tendered (percent) | 28.20% |  |  |  |  |  |  |  |
Contingent right to common stock represented by each RSU (shares) |  | 1 |  |  |  |  |  |  |
Common Stock | Share Redemption Program |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Minimum holding period for stock to be redeemed from stockholder by the Company |  |  |  |  |  | 1 year |  |  |

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