Revenue Recognition and Related Party Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended |
Mar. 31, 2018 | Mar. 31, 2017 |
Related Party Transaction [Line Items] | | |
Revenues | $ 103,199 | $ 68,303 |
REIT II | | |
Related Party Transaction [Line Items] | | |
Insurance premium | 80 | |
Non-operating property revenue | 0 | |
Other Parties | | |
Related Party Transaction [Line Items] | | |
Insurance premium | 444 | |
Non-operating property revenue | 133 | |
Investment Management | | |
Related Party Transaction [Line Items] | | |
Insurance premium | 524 | |
Non-operating property revenue | 133 | |
Revenues | 8,845 | |
Investment Management | REIT II | | |
Related Party Transaction [Line Items] | | |
Revenues | 6,935 | |
Investment Management | Other Parties | | |
Related Party Transaction [Line Items] | | |
Revenues | 1,910 | |
Advisory Revenue | REIT II | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 3,295 | |
Advisory Revenue | REIT II | Acquisition Fees | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 155 | |
Advisory Revenue | REIT II | Asset Management Fees | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 3,065 | |
Advisory Revenue | REIT II | Other Advisory Fees and Other Reimbursements | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 75 | |
Advisory Revenue | Other Parties | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 565 | |
Advisory Revenue | Other Parties | Acquisition Fees | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 256 | |
Advisory Revenue | Other Parties | Asset Management Fees | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 281 | |
Advisory Revenue | Other Parties | Other Advisory Fees and Other Reimbursements | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 28 | |
Advisory Revenue | Investment Management | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 3,860 | |
Advisory Revenue | Investment Management | Acquisition Fees | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 411 | |
Advisory Revenue | Investment Management | Asset Management Fees | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 3,346 | |
Advisory Revenue | Investment Management | Other Advisory Fees and Other Reimbursements | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 103 | |
Property Management and Services Revenue | REIT II | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 3,560 | |
Property Management and Services Revenue | REIT II | Property Management Fees | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 2,079 | |
Property Management and Services Revenue | REIT II | Leasing Commissions | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 1,172 | |
Property Management and Services Revenue | REIT II | Construction Management Fees | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 75 | |
Property Management and Services Revenue | REIT II | Other Property Management Fees and Reimbursements | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 234 | |
Property Management and Services Revenue | Other Parties | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 768 | |
Property Management and Services Revenue | Other Parties | Property Management Fees | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 352 | |
Property Management and Services Revenue | Other Parties | Leasing Commissions | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 251 | |
Property Management and Services Revenue | Other Parties | Construction Management Fees | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 22 | |
Property Management and Services Revenue | Other Parties | Other Property Management Fees and Reimbursements | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 143 | |
Property Management and Services Revenue | Investment Management | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 4,328 | |
Property Management and Services Revenue | Investment Management | Property Management Fees | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 2,431 | |
Property Management and Services Revenue | Investment Management | Leasing Commissions | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 1,423 | |
Property Management and Services Revenue | Investment Management | Construction Management Fees | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | 97 | |
Property Management and Services Revenue | Investment Management | Other Property Management Fees and Reimbursements | | |
Related Party Transaction [Line Items] | | |
Revenue from related parties | $ 377 | |