Derivative Instruments and Hedging Activities Interest Spread on Interest Rate Swaps (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Interest Rate Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net interest expense (income) on interest rate swaps and caps	$ (21,400,000)	$ (4,800,000)	$ (14,300,000)
Net Long Position [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Average Notional Amount	1,923,988,000	2,192,332,000
Net Long Position [Member] | Interest Rate Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Average Notional Amount	$ 8,000,000,000	$ 12,400,000,000	$ 15,900,000,000