Debt - Additional Information (Details)							3 Months Ended				12 Months Ended
	Dec. 31, 2020 USD ($) extension	Mar. 26, 2020 USD ($) extension tranche	Sep. 24, 2019	Dec. 04, 2018 USD ($)	Nov. 06, 2018 USD ($)	May 01, 2013 USD ($) instrument warehouse	Dec. 31, 2020 USD ($) instrument extension	Mar. 31, 2020 USD ($)	Dec. 31, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2020 USD ($) extension	Dec. 31, 2018 USD ($)	Dec. 31, 2020 CAD ($) extension	Dec. 31, 2020 EUR (€) extension	Nov. 03, 2020 USD ($)	Nov. 03, 2020 EUR (€)	Mar. 26, 2020 CAD ($) extension tranche	Dec. 31, 2019 USD ($)	Apr. 26, 2019 USD ($)	Dec. 03, 2018 USD ($)
Debt Instrument [Line Items]
Letter of credit amount outstanding	$ 21,700,000						$ 21,700,000				$ 21,700,000							$ 23,000,000.0
Outstanding borrowings	2,648,266,000						$ 2,648,266,000				2,648,266,000
Number of instruments terminated | instrument							2
Loss on debt extinguishment												$ 47,600,000
Term Loans | 2018 Senior Unsecured Term Loan A Facility
Debt Instrument [Line Items]
Face amount of debt		$ 475,000,000
Term Loans | Total 2020 Senior Unsecured Term Loan A Facility
Debt Instrument [Line Items]
Term of debt		5 years
Number of tranches | tranche		2															2
Unamortized debt issuance cost	5,600,000	$ 3,200,000					$ 5,600,000				5,600,000
Term Loans | 2020 Senior Unsecured Term Loan Tranche A-1
Debt Instrument [Line Items]
Face amount of debt	425,000,000,000,000	$ 425,000,000.0					425,000,000,000,000				425,000,000,000,000
Indebtedness repaid	100,000,000.0
Write-off of unamortized deferred financing costs	1,500,000
Termination fee on derivatives	(16,400,000)
Term Loans | 2020 Senior Unsecured Term Loan Tranche A-2
Debt Instrument [Line Items]
Face amount of debt													$ 250,000,000.0				$ 250,000,000.0
Term Loans | 2010 CMBS Financing
Debt Instrument [Line Items]
Loss on debt extinguishment										$ 21,400,000
Term Loans | ANZ Loans
Debt Instrument [Line Items]
Write-off of unamortized deferred financing costs									$ 2,200,000
Termination fee on derivatives									(1,800,000)
Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Unamortized debt issuance cost	$ 5,800,000						$ 5,800,000				$ 5,800,000							2,800,000
Line of Credit | Revolving Credit Facility | 2020 Senior Unsecured Revolving Credit Facility
Debt Instrument [Line Items]
Term of debt		4 years
Revolver borrowing capacity		$ 800,000,000
Unamortized debt issuance cost		$ 5,200,000
Number of extensions | extension	2	2					2				2		2	2			2
Extension term		6 months									6 months
Extension fee		0.0625%															0.0625%
Letter of credit amount outstanding	$ 21,700,000						$ 21,700,000				$ 21,700,000
Loss on debt extinguishment							1,500,000
Payments for settlement of hedge							16,400,000
Fee for termination of derivative instruments remaining in Accumulated Other Comprehensive Income	8,700,000						8,700,000				8,700,000
Fee on termination for derivative instruments recognized as interest							7,700,000
Line of Credit | Revolving Credit Facility | 2018 Senior Unsecured Revolving Credit Facility
Debt Instrument [Line Items]
Revolver borrowing capacity		$ 800,000,000		$ 800,000,000.0																$ 450,000,000.0
Letter of credit amount outstanding																		23,000,000.0
Revolver borrowing capacity, foreign currencies				$ 400,000,000
Fee on unused borrowing capacity			0.20%
Outstanding borrowings	0						0				0
Loss on debt extinguishment								$ 800,000
Line of Credit | Revolving Credit Facility | 2018 Senior Unsecured Term Loan A Facility
Debt Instrument [Line Items]
Change in applicable interest rate				(0.05%)
Unamortized debt issuance cost				$ 8,900,000														$ 6,100,000
Threshold for fee on unused borrowing capacity			50.00%
Line of Credit | Revolving Credit Facility | 2020 Senior Unsecured Term Loan A Facility and Senior Unsecured Credit Facility
Debt Instrument [Line Items]
Change in applicable interest rate		(0.05%)
Term Loans and Credit Facility | 2020 Senior Unsecured Term Loan A Facility and Senior Unsecured Credit Facility
Debt Instrument [Line Items]
Aggregate commitments under credit agreements	$ 1,300,000,000	$ 1,400,000,000					$ 1,300,000,000				$ 1,300,000,000
Maximum leverage ratio		60.00%															60.00%
Maximum leverage ratio after material acquisition		65.00%															65.00%
Maximum unencumbered leverage ratio		60.00%															60.00%
Minimum unencumbered leverage ratio after material acquisition		65.00%															65.00%
Maximum secured leverage ratio		40.00%															40.00%
Maximum secured leverage ratio after material acquisition		45.00%															45.00%
Minimum fixed charge coverage ratio		1.50															1.50
Minimum unsecured interest coverage ratio		1.75															1.75
Material acquisition threshold		5.00%															5.00%
Senior Notes | Senior Unsecured Notes
Debt Instrument [Line Items]
Maximum leverage ratio	60.00%						60.00%				60.00%		60.00%	60.00%
Maximum unencumbered leverage ratio	60.00%						60.00%				60.00%		60.00%	60.00%
Maximum secured leverage ratio	40.00%						40.00%				40.00%		40.00%	40.00%
Minimum fixed charge coverage ratio	1.50						1.50				1.50		1.50	1.50
Minimum principal for repayment of debt	5.00%						5.00%				5.00%		5.00%	5.00%
Notice period for repayment of debt											10 days
Principal repayment if change in control occurs	100.00%						100.00%				100.00%		100.00%	100.00%
Minimum unsecured debt service ratio	2.00						2.00				2.00		2.00	2.00
Senior Notes | Series C notes
Debt Instrument [Line Items]
Face amount of debt																			$ 350,000,000.0
Fixed interest rate	4.10%						4.10%				4.10%		4.10%	4.10%					4.10%
Senior Notes | Series A notes
Debt Instrument [Line Items]
Face amount of debt					$ 200,000,000.0
Fixed interest rate	4.68%				4.68%		4.68%				4.68%		4.68%	4.68%
Senior Notes | Series B notes
Debt Instrument [Line Items]
Face amount of debt					$ 400,000,000.0
Fixed interest rate	4.86%				4.86%		4.86%				4.86%		4.86%	4.86%
Senior Notes | Series D notes
Debt Instrument [Line Items]
Face amount of debt | €														€ 400,000,000.0		€ 400,000,000.00
Fixed interest rate	1.62%						1.62%				1.62%		1.62%	1.62%	1.62%	1.62%
Senior Notes | Series E notes
Debt Instrument [Line Items]
Face amount of debt | €														€ 350,000,000.0		€ 350,000,000.00
Fixed interest rate	1.65%						1.65%				1.65%		1.65%	1.65%	1.65%	1.65%
Senior Notes | Series D and Series E Notes
Debt Instrument [Line Items]
Unamortized debt issuance cost															$ 4,500,000
Senior Notes | Discount Rate | Senior Unsecured Notes | Valuation Technique, Discounted Cash Flow
Debt Instrument [Line Items]
Discount rate	0.0050						0.0050				0.0050		0.0050	0.0050
Mortgage Loans | 2013 Mortgage Loans
Debt Instrument [Line Items]
Face amount of debt						$ 322,000,000.0
Number of properties | warehouse						15
Restricted cash associated with debt	$ 3,600,000						$ 3,600,000				$ 3,600,000
Minimum borrowing base debt service coverage ratio						1.10
Mortgage Loans | 2010 CMBS Financing
Debt Instrument [Line Items]
Indebtedness repaid					$ 600,000,000.0
Mortgage Loans | 2010 Mortgage Loans
Debt Instrument [Line Items]
Write-off of unamortized deferred financing costs									3,400,000
Defeasance fee									$ 18,500,000
Mezzanine Notes | 2013 Mortgage Loans
Debt Instrument [Line Items]
Number of notes | instrument						2
Number of warehouses acquired | warehouse						2
Minimum | Line of Credit | Revolving Credit Facility | 2018 Senior Unsecured Revolving Credit Facility
Debt Instrument [Line Items]
Change in fee on unused borrowing capacity			0.05%
Minimum | Mortgage Loans | 2013 Mortgage Loans
Debt Instrument [Line Items]
Fixed interest rate						3.81%
Maximum | Line of Credit | Revolving Credit Facility | 2018 Senior Unsecured Revolving Credit Facility
Debt Instrument [Line Items]
Change in fee on unused borrowing capacity			0.15%
Maximum | Mortgage Loans | 2013 Mortgage Loans
Debt Instrument [Line Items]
Fixed interest rate						11.50%