Recently Issued Accounting Literature (Narrative) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Long term debt	$ 2,561,717	$ 2,560,025
Prime Rate | 731 Lexington Avenue
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Equity method ownership percentage	32.40%
731 Lexington Avenue | Mortgage loan | Prime Rate
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Long term debt	$ 500,000