Segment Information - Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Investments in partially owned entities	$ 42,742	$ 44,907
Total assets	7,823,320	7,831,151
Operating Segments
Segment Reporting Information [Line Items]
Assets	5,282,254	5,020,312
Corporate assets
Segment Reporting Information [Line Items]
Assets	357,353	621,836
Reconciling Items
Segment Reporting Information [Line Items]
Assets	2,140,971	2,144,096
Investments in partially owned entities	42,742	44,907
Total reconciling items
Segment Reporting Information [Line Items]
Total assets	2,541,066	2,810,839
Warehouse | Operating Segments
Segment Reporting Information [Line Items]
Assets	5,078,094	4,815,587
Third-party managed | Operating Segments
Segment Reporting Information [Line Items]
Assets	47,064	52,818
Transportation | Operating Segments
Segment Reporting Information [Line Items]
Assets	157,096	151,872
Other | Operating Segments
Segment Reporting Information [Line Items]
Assets	$ 0	$ 35