SENIOR NOTES PAYABLE AND OTHER DEBT - Indebtedness of Maturities (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Scheduled maturities of borrowing arrangements and other provisions excluding capital lease obligations
2022	$ 485,626
2023	503,287
2024	1,649,029
2025	2,071,035
2026	1,074,039
Thereafter	6,493,514
Total maturities	12,276,530	$ 12,093,138
Unrestricted cash and cash equivalents	145,146	$ 149,725
Unsecured Revolving Credit Facility and Commercial Paper
Scheduled maturities of borrowing arrangements and other provisions excluding capital lease obligations
2022	377,400
2023	0
2024	0
2025	31,057
2026	0
Thereafter	0
Total maturities	408,457
Remaining borrowing capacity	263,300
Principal Amount Due at Maturity
Scheduled maturities of borrowing arrangements and other provisions excluding capital lease obligations
2022	95,179
2023	460,768
2024	1,611,331
2025	2,007,873
2026	1,048,586
Thereafter	6,348,949
Total maturities	11,572,686
Scheduled Periodic Amortization
Scheduled maturities of borrowing arrangements and other provisions excluding capital lease obligations
2022	13,047
2023	42,519
2024	37,698
2025	32,105
2026	25,453
Thereafter	144,565
Total maturities	$ 295,387

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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