Financial Instruments and Fair Values - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Designated as hedging instrument | Cash flow hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net gain to be reclassified into interest expense within the next 12 months			$ 8,500,000
Interest Rate Swap And Interest Rate Cap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps liability	$ 0		0
Interest Rate Swap And Interest Rate Cap | Designated as hedging instrument | Cash flow hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Aggregate notional value	574,000,000		574,000,000		$ 574,800,000
Interest rate swap agreement asset	19,400,000		19,400,000		$ 17,900,000
Net unrealized gains on valuation of interest rate swap agreements	$ 10,100,000	$ 12,800,000	$ 3,400,000	$ 25,900,000