Supplemental Balance Sheet and Income Statement Information - Items reclassified to net income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Supplemental Balance Sheet and Income Statement Information
General and administrative expenses	$ 63,232	$ 58,167	$ 124,962	$ 111,806
Total income (loss) before income tax	42,679	(60,582)	126,754	(221,579)
Tax expense (benefit)	26,448	9,353	49,463	23,024
Net income (loss)	16,231	(69,935)	77,291	(244,603)
Reclassification out of Accumulated Other Comprehensive Income
Supplemental Balance Sheet and Income Statement Information
General and administrative expenses	52	52	104	104
Total income (loss) before income tax	(52)	(52)	(104)	(104)
Tax expense (benefit)	(12)	(12)	(24)	(24)
Net income (loss)	$ (40)	$ (40)	$ (80)	$ (80)