Leases - Summary of Leases as Lessor (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Aug. 05, 2020
Lessor, Lease, Description [Line Items]
Security deposits applied to accounts receivable				$ 2,753
Operating Leases, Lease Income
Base rent		$ 84,904	$ 89,135	175,710	$ 178,069
Percentage and specialty rent		450	683	1,496	2,002
Tenant recoveries		22,513	25,879	48,333	52,706
Lease termination fee income		252	232	376	1,420
Other lease-related income		1,044	1,589	2,549	2,886
Straight-line rental income, net		(1,284)	616	(943)	2,116
Bad debt, net		(12,419)	(77)	(13,923)	(477)
Amortization of above and below market lease intangibles and lease inducements		1,343	392	1,900	2,430
Lease income		96,803	118,449	215,498	241,152
Allowance for doubtful straight-line receivables		(1,636)	$ (592)	(2,671)	$ (814)
COVID-19
Lessor, Lease, Description [Line Items]
Variable lease adjustments to base rent		(51)		(51)
Base rent adjustments related to cash-basis tenants		(5,743)		(5,743)
Uncollected tenant recoveries related to cash-basis tenants		(1,289)		(1,289)
Deferred base rent	$ 6,530	6,530		6,530
Abatements and deferrals of base rent	$ 4,659	$ 4,659		$ 4,659
Weighted average deferral period	6 months
Weighted average repayment period	11 months
Subsequent events | COVID-19
Lessor, Lease, Description [Line Items]
Uncollected Q2 2020 base rent addressed						$ 2,493
Uncollected Q3 and Q4 2020 base rent addressed						$ 7,100