Fair Value Measurements (Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Designated as Hedging Instrument
Financial Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis
Interest rate swaps and caps (included in other liabilities)	$ 11,510
Recurring
Financial Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis
Deferred compensation plan assets (included in restricted cash and other assets)	113,352	$ 105,246
Loans receivable (included in investments in partially owned entities and in other assets)	84,137	32,984
Total assets	254,656	281,156
Mandatorily redeemable instruments (included in other liabilities)	49,383	49,386
Total liabilities	62,545	60,717
Recurring | Designated as Hedging Instrument
Financial Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis
Interest rate swaps and caps	55,514	138,772
Interest rate swaps and caps (included in other liabilities)	11,510	7,239
Recurring | Not Designated as Hedging Instrument
Financial Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis
Interest rate swaps and caps	1,653	4,154
Interest rate swaps and caps (included in other liabilities)	1,652	4,092
Recurring | Level 1
Financial Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis
Deferred compensation plan assets (included in restricted cash and other assets)	65,532	58,956
Loans receivable (included in investments in partially owned entities and in other assets)	0	0
Total assets	65,532	58,956
Mandatorily redeemable instruments (included in other liabilities)	49,383	49,386
Total liabilities	49,383	49,386
Recurring | Level 1 | Designated as Hedging Instrument
Financial Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis
Interest rate swaps and caps	0	0
Interest rate swaps and caps (included in other liabilities)	0	0
Recurring | Level 1 | Not Designated as Hedging Instrument
Financial Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis
Interest rate swaps and caps	0	0
Interest rate swaps and caps (included in other liabilities)	0	0
Recurring | Level 2
Financial Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis
Deferred compensation plan assets (included in restricted cash and other assets)	0	0
Loans receivable (included in investments in partially owned entities and in other assets)	0	0
Total assets	57,167	142,926
Mandatorily redeemable instruments (included in other liabilities)	0	0
Total liabilities	13,162	11,331
Recurring | Level 2 | Designated as Hedging Instrument
Financial Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis
Interest rate swaps and caps	55,514	138,772
Interest rate swaps and caps (included in other liabilities)	11,510	7,239
Recurring | Level 2 | Not Designated as Hedging Instrument
Financial Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis
Interest rate swaps and caps	1,653	4,154
Interest rate swaps and caps (included in other liabilities)	1,652	4,092
Recurring | Level 3
Financial Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis
Deferred compensation plan assets (included in restricted cash and other assets)	47,820	46,290
Loans receivable (included in investments in partially owned entities and in other assets)	84,137	32,984
Total assets	131,957	79,274
Mandatorily redeemable instruments (included in other liabilities)	0	0
Total liabilities	0	0
Recurring | Level 3 | Designated as Hedging Instrument
Financial Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis
Interest rate swaps and caps	0	0
Interest rate swaps and caps (included in other liabilities)	0	0
Recurring | Level 3 | Not Designated as Hedging Instrument
Financial Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis
Interest rate swaps and caps	0	0
Interest rate swaps and caps (included in other liabilities)	0	0
Restricted Cash | Recurring
Financial Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis
Deferred compensation plan assets (included in restricted cash and other assets)	8,155	26,363
Other assets | Recurring
Financial Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis
Deferred compensation plan assets (included in restricted cash and other assets)	105,197	$ 78,883
Loans receivable (included in investments in partially owned entities and in other assets)	51,153
Investments in partially owned entities | Recurring
Financial Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis
Loans receivable (included in investments in partially owned entities and in other assets)	$ 32,984