Debt (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($) extension	Mar. 31, 2022 CAD ($) extension	Mar. 31, 2022 EUR (€) extension	Mar. 31, 2022 GBP (£) extension	Mar. 31, 2022 AUD ($) extension	Dec. 31, 2021 USD ($)	Mar. 31, 2021 USD ($)
Mortgages, Senior Notes and Term Loans
Debt Instrument [Line Items]
Carrying Amount	$ 2,946,886					$ 2,854,170
Estimated Fair Value	2,865,874					2,939,237
Less: unamortized deferred financing costs	(10,492)					(11,050)
Long-term Debt, Total	2,936,394					2,843,120
Mortgage Loans | 2013 Mortgage Loans
Debt Instrument [Line Items]
Carrying Amount	267,719					269,545
Estimated Fair Value	$ 267,800					273,938
Mortgage Loans | Senior note
Debt Instrument [Line Items]
Contractual Interest Rate	3.81%	3.81%	3.81%	3.81%	3.81%
Effective Interest Rate as of March 31, 2022	4.14%	4.14%	4.14%	4.14%	4.14%
Carrying Amount	$ 165,719					167,545
Estimated Fair Value	$ 165,720					170,503
Mortgage Loans | Mezzanine A
Debt Instrument [Line Items]
Contractual Interest Rate	7.38%	7.38%	7.38%	7.38%	7.38%
Effective Interest Rate as of March 31, 2022	7.55%	7.55%	7.55%	7.55%	7.55%
Carrying Amount	$ 70,000					70,000
Estimated Fair Value	$ 70,000					70,875
Mortgage Loans | Mezzanine B
Debt Instrument [Line Items]
Contractual Interest Rate	11.50%	11.50%	11.50%	11.50%	11.50%
Effective Interest Rate as of March 31, 2022	11.75%	11.75%	11.75%	11.75%	11.75%
Carrying Amount						32,000	$ 32,000
Estimated Fair Value	$ 32,080					32,560
Mortgage Loans | Chile Mortgages
Debt Instrument [Line Items]
Contractual Interest Rate	4.01%	4.01%	4.01%	4.01%	4.01%
Effective Interest Rate as of March 31, 2022	4.01%	4.01%	4.01%	4.01%	4.01%
Carrying Amount	$ 10,443					9,761
Estimated Fair Value	10,443					9,761
Senior Notes | Senior Unsecured Notes
Debt Instrument [Line Items]
Carrying Amount	1,780,025					1,802,750
Estimated Fair Value	$ 1,700,806					1,886,723
Senior Notes | Series D 1.62% notes due 2031
Debt Instrument [Line Items]
Contractual Interest Rate	1.62%	1.62%	1.62%	1.62%	1.62%
Effective Interest Rate as of March 31, 2022	1.67%	1.67%	1.67%	1.67%	1.67%
Carrying Amount	$ 442,680					454,800
Estimated Fair Value	$ 392,879					441,724
Face amount of debt | €			€ 400,000,000
Senior Notes | Series E 1.65% notes due 2033
Debt Instrument [Line Items]
Contractual Interest Rate	1.65%	1.65%	1.65%	1.65%	1.65%
Effective Interest Rate as of March 31, 2022	1.70%	1.70%	1.70%	1.70%	1.70%
Carrying Amount	$ 387,345					397,950
Estimated Fair Value	$ 338,927					388,499
Face amount of debt | €			€ 350,000,000
Senior Notes | Series C Notes
Debt Instrument [Line Items]
Contractual Interest Rate	4.10%	4.10%	4.10%	4.10%	4.10%
Effective Interest Rate as of March 31, 2022	4.15%	4.15%	4.15%	4.15%	4.15%
Carrying Amount	$ 350,000					350,000
Estimated Fair Value	$ 350,000					385,000
Senior Notes | Series A Notes
Debt Instrument [Line Items]
Contractual Interest Rate	4.68%	4.68%	4.68%	4.68%	4.68%
Effective Interest Rate as of March 31, 2022	4.77%	4.77%	4.77%	4.77%	4.77%
Carrying Amount	$ 200,000					200,000
Estimated Fair Value	$ 204,000					217,500
Senior Notes | Series B Notes
Debt Instrument [Line Items]
Contractual Interest Rate	4.86%	4.86%	4.86%	4.86%	4.86%
Effective Interest Rate as of March 31, 2022	4.92%	4.92%	4.92%	4.92%	4.92%
Carrying Amount	$ 400,000					400,000
Estimated Fair Value	415,000					454,000
Term Loans | Total 2020 Senior Unsecured Term Loan A Facility
Debt Instrument [Line Items]
Carrying Amount	374,875					372,800
Estimated Fair Value	$ 373,001					370,499
Term Loans | 2020 Senior Unsecured Term Loan Tranche A-1
Debt Instrument [Line Items]
Effective Interest Rate as of March 31, 2022	1.69%	1.69%	1.69%	1.69%	1.69%
Carrying Amount	$ 174,875					175,000
Estimated Fair Value	$ 174,001					173,688
Term Loans | 2020 Senior Unsecured Term Loan Tranche A-1 | LIBOR
Debt Instrument [Line Items]
Contractual Interest Rate	0.95%
Term Loans | 2020 Senior Unsecured Term Loan Tranche A-2
Debt Instrument [Line Items]
Effective Interest Rate as of March 31, 2022	2.03%	2.03%	2.03%	2.03%	2.03%
Carrying Amount	$ 200,000					197,800
Estimated Fair Value	$ 199,000					196,811
Face amount of debt		$ 250,000,000
Term Loans | 2020 Senior Unsecured Term Loan Tranche A-2 | CDOR
Debt Instrument [Line Items]
Contractual Interest Rate	0.95%
Term Loans | Twenty Twenty Senior Unsecured Revolving Credit Facility
Debt Instrument [Line Items]
Carrying Amount	$ 513,824					399,314
Estimated Fair Value	$ 513,824					398,316
Term Loans | 2020 Senior Unsecured Revolving Credit Facility
Debt Instrument [Line Items]
Effective Interest Rate as of March 31, 2022	2.02%	2.02%	2.02%	2.02%	2.02%
Carrying Amount	$ 89,995					92,694
Estimated Fair Value	$ 89,995					92,462
Term Loans | 2020 Senior Unsecured Revolving Credit Facility | SONIA
Debt Instrument [Line Items]
Contractual Interest Rate	0.85%
Term Loans | 2020 Senior Unsecured Revolving Credit Facility
Debt Instrument [Line Items]
Effective Interest Rate as of March 31, 2022	1.75%	1.75%	1.75%	1.75%	1.75%
Carrying Amount	$ 320,000					205,000
Estimated Fair Value	$ 320,000					204,488
Term Loans | 2020 Senior Unsecured Revolving Credit Facility | LIBOR
Debt Instrument [Line Items]
Contractual Interest Rate	0.85%
Line of Credit | 2020 Senior Unsecured Term Loan Tranche A-2 | Revolving Credit Facility
Debt Instrument [Line Items]
Revolver borrowing capacity | £				£ 68,500,000
Line of Credit | 2020 Senior Unsecured Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Effective Interest Rate as of March 31, 2022	2.22%	2.22%	2.22%	2.22%	2.22%
Carrying Amount	$ 43,973					43,516
Estimated Fair Value	$ 43,973					43,407
Number of extensions | extension	2	2	2	2	2
Extension term	6 months
Revolver borrowing capacity		$ 55,000,000.0
Line of Credit | 2020 Senior Unsecured Revolving Credit Facility | CDOR | Revolving Credit Facility
Debt Instrument [Line Items]
Contractual Interest Rate	0.85%
Line of Credit | 2020 Senior Unsecured Revolving Credit Facilities, Tranche 4
Debt Instrument [Line Items]
Contractual Interest Rate	0.85%
Effective Interest Rate as of March 31, 2022	1.36%	1.36%	1.36%	1.36%	1.36%
Carrying Amount	$ 59,856					58,104
Estimated Fair Value	$ 59,856					$ 57,959
Line of Credit | 2020 Senior Unsecured Revolving Credit Facilities, Tranche 4 | Revolving Credit Facility
Debt Instrument [Line Items]
Revolver borrowing capacity					$ 80,000,000