SENIOR NOTES PAYABLE AND OTHER DEBT - Indebtedness of Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Scheduled maturities of borrowing arrangements and other provisions excluding capital lease obligations
2023	$ 132,629
2024	1,680,338
2025	2,241,611
2026	1,951,619
2027	1,380,325
Thereafter	6,052,420
Total maturities	13,438,942	$ 12,361,244
Unrestricted cash and cash equivalents	138,648	$ 122,564
Unsecured Revolving Credit Facility and Commercial Paper
Scheduled maturities of borrowing arrangements and other provisions excluding capital lease obligations
2023	0
2024	0
2025	170,019
2026	0
2027	0
Thereafter	0
Total maturities	170,019
Remaining borrowing capacity	31,400
Principal Amount Due at Maturity
Scheduled maturities of borrowing arrangements and other provisions excluding capital lease obligations
2023	105,539
2024	1,630,168
2025	2,026,619
2026	1,912,832
2027	1,341,775
Thereafter	5,897,892
Total maturities	12,914,825
Scheduled Periodic Amortization
Scheduled maturities of borrowing arrangements and other provisions excluding capital lease obligations
2023	27,090
2024	50,170
2025	44,973
2026	38,787
2027	38,550
Thereafter	154,528
Total maturities	$ 354,098

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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