Segment Information (Reportable Segment Results) (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Reportable segment results
Total revenues	$ 1,032,704		$ 424,256		$ 1,979,829	$ 800,367
Adjusted EBITDA	438,360		18,061		849,347	25,702
Net income (loss)	291,995	$ 269,898	(55,085)	$ (40,972)	561,893	(96,057)
Total assets	2,759,491		2,156,587		2,759,491	2,156,587	$ 2,461,412
Capital expenditures	51,664		29,702		91,467	52,307
Other and Corporate [Member]
Reportable segment results
Total revenues					0	0
Adjusted EBITDA	(10,349)		(7,493)		(18,231)	(13,324)
Net income (loss)	(17,056)		(9,901)		(20,272)	(18,932)
Total assets	240,943		168,427		240,943	168,427
Capital expenditures	236		435		329	1,468
Australia Segment [Member] | Operating Segments [Member]
Reportable segment results
Total revenues	578,388		251,432		1,183,686	489,726
Adjusted EBITDA	196,315		(13,880)		435,284	(36,937)
Net income (loss)	127,905		(63,507)		278,052	(105,838)
Total assets	1,473,795		1,115,815		1,473,795	1,115,815
Capital expenditures	30,755		13,180		46,716	20,214
United States Segment [Member] | Operating Segments [Member]
Reportable segment results
Total revenues	454,316		172,824		796,143	310,641
Adjusted EBITDA	252,394		39,434		432,294	75,963
Net income (loss)	181,146		18,323		304,113	28,713
Total assets	1,044,753		872,345		1,044,753	872,345
Capital expenditures	$ 20,673		$ 16,087		$ 44,422	$ 30,625