SENIOR NOTES PAYABLE AND OTHER DEBT - Scheduled Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Scheduled maturities of borrowing arrangements and other provisions excluding capital lease obligations
2023	$ 914,848
2024	1,731,519
2025	2,075,797
2026	1,076,902
2027	1,354,973
Thereafter	5,207,205
Total maturities	12,361,244	$ 12,093,138
Unrestricted cash and cash equivalents	122,564	$ 149,725
Unsecured Revolving Credit Facility and Commercial Paper
Scheduled maturities of borrowing arrangements and other provisions excluding capital lease obligations
2023	403,000
2024	0
2025	25,230
2026	0
Thereafter	0
Line of credit facility, remaining borrowing capacity	305,700
Principal Amount Due at Maturity
Scheduled maturities of borrowing arrangements and other provisions excluding capital lease obligations
2023	466,792
2024	1,691,862
2025	2,016,471
2026	1,049,404
2027	1,328,150
Thereafter	5,076,523
Total maturities	11,629,202
Unsecured Revolving Credit Facility
Scheduled maturities of borrowing arrangements and other provisions excluding capital lease obligations
2027	0
Total maturities	428,230
Scheduled Periodic Amortization
Scheduled maturities of borrowing arrangements and other provisions excluding capital lease obligations
2023	45,056
2024	39,657
2025	34,096
2026	27,498
2027	26,823
Thereafter	130,682
Total maturities	$ 303,812

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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