Supplemental Cash Flow Information (Reconciliation of Cash, Cash Equivalents and Restricted Cash to Statement of Cash Flows) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Supplemental Cash Flow Information [Abstract]
Cash and cash equivalents	$ 105,458	$ 59,133	$ 183,377
Restricted cash	9,108	29,486	4,239
Total cash, cash equivalents and restricted cash shown in the statement of cash flows	$ 114,566	$ 88,619	$ 187,616	$ 356,677