Schedule II - Condensed Financial Information of the Registrant (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets
Investments in consolidated affiliates	$ 112,850	$ 87,911
Other	29,054	27,108
Total assets	1,972,569	2,117,391
Liabilities
Total liabilities	1,160,570	1,190,218
Shareholders' equity	811,999	927,173	$ 884,679	$ 808,406
Total liabilities and shareholders' equity	1,972,569	2,117,391
Registrant
Assets
Investments in consolidated affiliates	813,916	929,136
Other	9	24
Total assets	813,925	929,160
Liabilities
Accounts payable and other liabilities	1,926	1,987
Total liabilities	1,926	1,987
Shareholders' equity	811,999	927,173
Total liabilities and shareholders' equity	$ 813,925	$ 929,160