Related Party Transactions - Schedule of Related Parties (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Related Party Transaction [Line Items]
Payable	$ 7,471		$ 10,883
Incurred fees	115	$ 6,463
Receivable	635		837
Costs advanced by the Advisor
Related Party Transaction [Line Items]
Incurred costs	627	298
Payable	1,185		1,164
Consulting fee - shared services
Related Party Transaction [Line Items]
Incurred costs	625	562
Payable	504		441
Leasing commissions
Related Party Transaction [Line Items]
Incurred costs	0	1,791
Payable	0		0
Earn-out
Related Party Transaction [Line Items]
Incurred costs	0	0
Payable	338		2,919
Stockholder Servicing Fee
Related Party Transaction [Line Items]
Incurred costs	0	0
Payable	4,083		4,994
Distributions
Related Party Transaction [Line Items]
Incurred costs	4,009	3,512
Payable	1,361		1,365
Total
Related Party Transaction [Line Items]
Incurred costs	5,261	6,163
Payable	7,471		10,883
Deferred compensation and other payroll
Related Party Transaction [Line Items]
Incurred fees	0	658
Receivable	0		0
Other fees
Related Party Transaction [Line Items]
Incurred fees	0	0
Receivable	51		352
Griffin Capital Corporation \| Reimbursable Expense Allocation
Related Party Transaction [Line Items]
Incurred fees	16	0
Receivable	4		4
Griffin Capital Corporation \| Payroll/Expense Allocation
Related Party Transaction [Line Items]
Incurred fees	99	112
Receivable	580		0
Griffin Capital Essential Asset REIT II \| Reimbursable Expense Allocation
Related Party Transaction [Line Items]
Incurred fees	0	0
Receivable	0		481
Griffin Capital Essential Asset REIT II \| Other Fees
Related Party Transaction [Line Items]
Incurred fees	0	$ 5,693
Receivable	$ 0		$ 0

For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

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