Significant Accounting Policies and Pronouncements (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Jan. 01, 2021	Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total equity	$ 4,153,121	$ 4,764,178	$ 5,134,057	$ 5,955,094	$ 5,361,951	$ 4,079,127	$ 3,975,317		$ 4,047,716
ASU 2018-12 | Decrease
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total equity								$ (700,000)
ASU 2018-12 | Increase
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total equity								$ 100,000