Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Total revenues	$ 477,035	$ 432,701	$ 955,177	$ 820,683
Lease revenue	5,487	5,759	11,414	10,856
Total revenues from contracts with all customers	482,522	438,460	966,591	831,539
Warehouse rent and storage
Disaggregation of Revenue [Line Items]
Total revenues	158,176	136,271	314,571	257,580
Warehouse services
Disaggregation of Revenue [Line Items]
Total revenues	208,748	196,216	427,505	359,449
Third-party managed
Disaggregation of Revenue [Line Items]
Total revenues	72,954	61,515	137,875	125,633
Transportation
Disaggregation of Revenue [Line Items]
Total revenues	34,861	36,492	70,778	73,588
Other
Disaggregation of Revenue [Line Items]
Total revenues	2,296	2,207	4,448	4,433
United States
Disaggregation of Revenue [Line Items]
Total revenues	405,970	365,225	809,280	683,826
Lease revenue	5,487	5,677	11,414	10,774
Total revenues from contracts with all customers	411,457	370,902	820,694	694,600
United States | Warehouse rent and storage
Disaggregation of Revenue [Line Items]
Total revenues	140,612	121,811	279,228	228,635
United States | Warehouse services
Disaggregation of Revenue [Line Items]
Total revenues	170,848	162,529	349,602	291,418
United States | Third-party managed
Disaggregation of Revenue [Line Items]
Total revenues	64,149	53,518	120,453	110,532
United States | Transportation
Disaggregation of Revenue [Line Items]
Total revenues	28,065	25,160	55,549	48,808
United States | Other
Disaggregation of Revenue [Line Items]
Total revenues	2,296	2,207	4,448	4,433
Australia
Disaggregation of Revenue [Line Items]
Total revenues	50,931	52,852	104,889	107,905
Lease revenue	0	82	0	82
Total revenues from contracts with all customers	50,931	52,934	104,889	107,987
Australia | Warehouse rent and storage
Disaggregation of Revenue [Line Items]
Total revenues	9,153	9,236	18,343	18,604
Australia | Warehouse services
Disaggregation of Revenue [Line Items]
Total revenues	31,316	29,497	64,019	59,495
Australia | Third-party managed
Disaggregation of Revenue [Line Items]
Total revenues	4,198	3,348	8,393	6,208
Australia | Transportation
Disaggregation of Revenue [Line Items]
Total revenues	6,264	10,771	14,134	23,598
Australia | Other
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
New Zealand
Disaggregation of Revenue [Line Items]
Total revenues	6,799	7,578	14,114	15,164
Lease revenue	0	0	0	0
Total revenues from contracts with all customers	6,799	7,578	14,114	15,164
New Zealand | Warehouse rent and storage
Disaggregation of Revenue [Line Items]
Total revenues	3,486	4,068	7,297	8,049
New Zealand | Warehouse services
Disaggregation of Revenue [Line Items]
Total revenues	3,250	3,407	6,675	6,902
New Zealand | Third-party managed
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
New Zealand | Transportation
Disaggregation of Revenue [Line Items]
Total revenues	63	103	142	213
New Zealand | Other
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Argentina
Disaggregation of Revenue [Line Items]
Total revenues	2,574	2,397	4,720	4,895
Lease revenue	0	0	0	0
Total revenues from contracts with all customers	2,574	2,397	4,720	4,895
Argentina | Warehouse rent and storage
Disaggregation of Revenue [Line Items]
Total revenues	1,433	1,156	2,465	2,292
Argentina | Warehouse services
Disaggregation of Revenue [Line Items]
Total revenues	672	783	1,302	1,634
Argentina | Third-party managed
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Argentina | Transportation
Disaggregation of Revenue [Line Items]
Total revenues	469	458	953	969
Argentina | Other
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Canada
Disaggregation of Revenue [Line Items]
Total revenues	10,761	4,649	22,174	8,893
Lease revenue	0	0	0	0
Total revenues from contracts with all customers	10,761	4,649	22,174	8,893
Canada | Warehouse rent and storage
Disaggregation of Revenue [Line Items]
Total revenues	3,492	0	7,238	0
Canada | Warehouse services
Disaggregation of Revenue [Line Items]
Total revenues	2,662	0	5,907	0
Canada | Third-party managed
Disaggregation of Revenue [Line Items]
Total revenues	4,607	4,649	9,029	8,893
Canada | Transportation
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Canada | Other
Disaggregation of Revenue [Line Items]
Total revenues	$ 0	$ 0	$ 0	$ 0