Supplemental Balance Sheet and Income Statement Information - Items reclassified to net income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Supplemental Balance Sheet and Income Statement Information
Interest expense	$ 177,895	$ 171,476	$ 206,274
General and administrative expenses	228,431	213,559	203,515
Income (loss) from continuing operations before income taxes	(245,682)	(488,089)	(705,567)
Tax expense (benefit)	61,536	55,621	57,286
Net income (loss)	(307,218)	(543,690)	(762,846)
Reclassification out of Accumulated Other Comprehensive Income
Supplemental Balance Sheet and Income Statement Information
Interest expense			160
General and administrative expenses	208	208	210
Income (loss) from continuing operations before income taxes	(208)	(208)	(370)
Tax expense (benefit)	(48)	(48)	(141)
Net income (loss)	$ (160)	$ (160)	$ (229)