Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Feb. 03, 2021	Feb. 02, 2021	Jan. 01, 2021
Supplemental Cash Flow Information [Abstract]
Cash and cash equivalents	$ 359,511	$ 314,974	$ 197,307	$ 172,768	$ 172,768	$ 188,006
Restricted cash-current	0	0	16,751	16,751	16,751	0
Restricted cash-non-current	79,561	79,561	80,056	80,179	80,179	80,178
Cash, cash equivalents, and restricted cash	$ 439,072	$ 394,535	$ 294,114	$ 269,698	$ 269,698	$ 268,184