Debt - Carrying Amount (Details) $ in Thousands	1 Months Ended	3 Months Ended	6 Months Ended	12 Months Ended
	Apr. 30, 2022 USD ($)	Jun. 30, 2022 USD ($) loan	Jun. 30, 2022 USD ($) loan	Dec. 31, 2021 USD ($)	Nov. 30, 2021 USD ($)	Nov. 30, 2020 USD ($)	Feb. 28, 2019 USD ($)	Mar. 31, 2018 USD ($)
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Unamortized discount		$ (4,427)	$ (4,427)	$ (4,740)
Unamortized deferred financing costs		(14,373)	(14,373)	(12,447)
Total unsecured notes and term loans payable, net		2,381,200	2,381,200	$ 1,782,813
Interest rate swaps that were in a liability position		0	0
Credit Risk Related Contingent Features
Derivative liabilities		0	0
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Remainder of 2022		91,326	91,326
2023		45,048	45,048
2024		315,952	315,952
2025		276,649	276,649
2026		550,068	550,068
2027		869,978	869,978
Thereafter		2,526,552	2,526,552
Long-term Debt		4,675,573	$ 4,675,573
Various Debt, Prepayable Twenty-Four Months Prior to Maturity [Member]
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Debt prepayment period without penalty			24 months	24 months
Various Debt, Prepayable Thirty-Six Months Prior to Maturity [Member]
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Debt prepayment period without penalty			36 months	36 months
Unsecured Term Loan
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount	$ 600,000
Fixed rate	3.68%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		$ 600,000	$ 600,000
Unsecured Five Year Term Loan
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Expected repayment term of receivables	5 years	5 years
Effective fixed rate		3.58%	3.58%
Principal amount	$ 400,000
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		$ 400,000	$ 400,000
Unsecured Seven Year Term Loan
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Expected repayment term of receivables	7 years	7 years
Effective fixed rate		3.88%	3.88%
Principal amount	$ 200,000
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		$ 200,000	$ 200,000
Consolidated special purpose entities
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Aggregate investment amount		3,600,000	3,600,000
Unamortized discount		(436)	(436)	$ (496)
Unamortized deferred financing costs		(22,470)	(22,470)	(25,583)
Total unsecured notes and term loans payable, net		2,252,667	2,252,667	2,425,708
Scheduled Principal Payments
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Remainder of 2022		11,576	11,576
2023		22,866	22,866
2024		22,154	22,154
2025		20,037	20,037
2026		17,926	17,926
2027		9,506	9,506
Thereafter		30,702	30,702
Long-term Debt		134,767	134,767
Balloon Payments
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Remainder of 2022		79,750	79,750
2023		22,182	22,182
2024		293,798	293,798
2025		256,612	256,612
2026		532,142	532,142
2027		860,472	860,472
Thereafter		2,495,850	2,495,850
Long-term Debt		4,540,806	4,540,806
Senior Unsecured Notes
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		375,000	375,000
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		$ 1,800,000	$ 1,800,000	1,800,000
Senior Unsecured Notes | Series A issued November 2015
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Stated interest rate (as a percent)		4.95%	4.95%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		$ 75,000	$ 75,000	75,000
Senior Unsecured Notes | Series B issued November 2015
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Stated interest rate (as a percent)		5.24%	5.24%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		$ 100,000	$ 100,000	100,000
Senior Unsecured Notes | Series C issued April 2016
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Stated interest rate (as a percent)		4.73%	4.73%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		$ 200,000	$ 200,000	200,000
Senior Unsecured Notes | Public Notes issued March 2018
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Stated interest rate (as a percent)		4.50%	4.50%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		$ 350,000	$ 350,000	350,000
Senior Unsecured Notes | Public Notes Issued February 2019
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Stated interest rate (as a percent)		4.625%	4.625%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		$ 350,000	$ 350,000	350,000
Senior Unsecured Notes | Public Notes Issued November 2020
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Stated interest rate (as a percent)		2.75%	2.75%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		$ 350,000	$ 350,000	350,000
Senior Unsecured Notes | Public Notes Issued November 2021
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Stated interest rate (as a percent)		2.70%	2.70%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		$ 375,000	$ 375,000	375,000
Senior Unsecured Notes | Notes Issued March 2018 99.515 Percent Of Par
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Stated interest rate (as a percent)								4.50%
Note issue price (as a percent)								99.515%
Senior Unsecured Notes | Notes Issued February 2019 99.260 Percent Of Par
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Stated interest rate (as a percent)							4.625%
Note issue price (as a percent)							99.26%
Senior Unsecured Notes | Notes Issued November 2020 99.558 Percent Of Par
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Stated interest rate (as a percent)						2.75%
Note issue price (as a percent)						99.558%
Senior Unsecured Notes | Notes Issued November 2021 99.877 Percent Of Par
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Stated interest rate (as a percent)					2.70%
Note issue price (as a percent)					99.877%
Public notes
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Number of facilities | loan		4	4
Expected repayment term of receivables			10 years
Principal amount					$ 375,000	$ 350,000	$ 350,000	$ 350,000
Non-recourse net-lease mortgage notes:
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Retained non-amortizing notes		$ 190,000	$ 190,000
Non-recourse net-lease mortgage notes: | Consolidated special purpose entities
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		2,128,078	2,128,078	2,272,522
Non-recourse net-lease mortgage notes: | Consolidated special purpose entities | Series 20141, Class A2 Due April 2024
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Amortization of deferred financing costs			800
Principal amount	$ 134,500	140,000	$ 140,000
Interest Rate			5.00%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt				134,692
Non-recourse net-lease mortgage notes: | Consolidated special purpose entities | Series 2018-1 Class A-1 Due October 2024
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		150,000	$ 150,000
Interest Rate			3.96%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		141,302	$ 141,302	142,051
Non-recourse net-lease mortgage notes: | Consolidated special purpose entities | Series 2018-1 Class A-3 Due October 2024
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		50,000	$ 50,000
Interest Rate			4.40%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		48,667	$ 48,667	48,917
Non-recourse net-lease mortgage notes: | Consolidated special purpose entities | Series 2015-1, Class A-2 Due April 2025
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		270,000	$ 270,000
Interest Rate			4.17%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		260,325	$ 260,325	260,999
Non-recourse net-lease mortgage notes: | Consolidated special purpose entities | Series 2016-1, Class A-1 (2016) Due Oct 2026
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		200,000	$ 200,000
Interest Rate			3.96%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		178,047	$ 178,047	180,190
Non-recourse net-lease mortgage notes: | Consolidated special purpose entities | Series 2019-1, Class A-1 Due Nov 2026 [Member]
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		82,000	$ 82,000
Interest Rate			2.82%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		78,385	$ 78,385	78,590
Non-recourse net-lease mortgage notes: | Consolidated special purpose entities | Series 2019-1, Class A-3 Due Nov 2026 [Member]
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		46,000	$ 46,000
Interest Rate			3.32%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		45,406	$ 45,406	45,521
Non-recourse net-lease mortgage notes: | Consolidated special purpose entities | Series 2016-1, Class A-2 (2017) Due April 2027
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		135,000	$ 135,000
Interest Rate			4.32%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		121,628	$ 121,628	123,046
Non-recourse net-lease mortgage notes: | Consolidated special purpose entities | Series 2018-1 Class A-2 Due October 2027
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		228,000	$ 228,000
Interest Rate			4.29%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		214,778	$ 214,778	215,918
Non-recourse net-lease mortgage notes: | Consolidated special purpose entities | Series 2018-1 Class A-4 Due October 2027
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		164,000	$ 164,000
Interest Rate			4.74%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		159,627	$ 159,627	160,447
Non-recourse net-lease mortgage notes: | Consolidated special purpose entities | Series 2019-1, Class A-2 Due Nov 2034
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		244,000	$ 244,000
Interest Rate			3.65%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		233,244	$ 233,244	233,854
Non-recourse net-lease mortgage notes: | Consolidated special purpose entities | Series 2019-1, Class A-4 Due Nov 2034
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		136,000	$ 136,000
Interest Rate			4.49%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		134,243	$ 134,243	134,583
Non-recourse net-lease mortgage notes: | Consolidated special purpose entities | Series 2021.1, Class A.1 Notes Due June 2028
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		168,500	$ 168,500
Interest Rate			2.12%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		167,658	$ 167,658	168,079
Non-recourse net-lease mortgage notes: | Consolidated special purpose entities | Series 2021.1, Class A.3 Notes Due June 2028
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		89,000	$ 89,000
Interest Rate			2.86%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		88,555	$ 88,555	88,778
Non-recourse net-lease mortgage notes: | Consolidated special purpose entities | Series 2021.1, Class A.2 Notes Due June 2033
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		168,500	$ 168,500
Interest Rate			2.96%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		167,658	$ 167,658	168,079
Non-recourse net-lease mortgage notes: | Consolidated special purpose entities | Series 2021.1, Class A.4 Notes Due June 2033
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		89,000	$ 89,000
Interest Rate			3.70%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		88,555	$ 88,555	88,778
Nonrecourse mortgage notes payable: | Consolidated special purpose entities
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Aggregate investment amount		261,400	261,400
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		147,495	147,495	179,265
Nonrecourse mortgage notes payable: | Consolidated special purpose entities | $13,000 note issued May 2012
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		13,000	$ 13,000
Interest Rate			5.195%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt				9,961
Nonrecourse mortgage notes payable: | Consolidated special purpose entities | $26,000 note issued August 2012
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		26,000	$ 26,000
Interest Rate			5.05%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt				20,085
Nonrecourse mortgage notes payable: | Consolidated special purpose entities | $6,400 note issued November 2012
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		6,400	$ 6,400
Interest Rate			4.707%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		4,836	$ 4,836	4,938
Nonrecourse mortgage notes payable: | Consolidated special purpose entities | $11,895 note issued March 2013
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		11,895	$ 11,895
Interest Rate			4.7315%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		9,124	$ 9,124	9,309
Nonrecourse mortgage notes payable: | Consolidated special purpose entities | $17,500 note issued August 2013
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		17,500	$ 17,500
Interest Rate			5.46%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		13,959	$ 13,959	14,212
Nonrecourse mortgage notes payable: | Consolidated special purpose entities | $10,075 note issued March 2014
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		10,075	$ 10,075
Interest Rate			5.10%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		8,706	$ 8,706	8,808
Nonrecourse mortgage notes payable: | Consolidated special purpose entities | $65,000 note issued June 2016
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		65,000	$ 65,000
Interest Rate			4.75%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		58,605	$ 58,605	59,223
Nonrecourse mortgage notes payable: | Consolidated special purpose entities | $41,690 note issued March 2019
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		41,690	$ 41,690
Interest Rate			4.80%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		40,977	$ 40,977	41,291
Nonrecourse mortgage notes payable: | Consolidated special purpose entities | $6,944 notes issued March 2013
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		6,944	$ 6,944
Interest Rate			4.50%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		5,238	$ 5,238	5,332
Nonrecourse mortgage notes payable: | Consolidated special purpose entities | $6,350 notes issued March 2019 (assumed in December 2020)
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Interest Rate			4.64%
Scheduled maturities, including balloon payments, on the nonrecourse debt obligations
Long-term Debt		6,050	$ 6,050	$ 6,106
Non-recourse debt obligations | Consolidated special purpose entities | $6,350 notes issued March 2019 (assumed in December 2020)
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Principal amount		$ 6,350	$ 6,350
Minimum
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Maximum number of months			24 months
Maximum
Summary of nonrecourse debt obligations of consolidated special purpose entity subsidiaries
Maximum number of months			36 months