Supplemental Balance Sheet, Income Statement and Cash Flow Information - Reclass Accumulated Other (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Unrealized (gains) losses on available-for-sale securities that were reclassified from net income
Interest expense	$ 46,910	$ 42,975
General and administrative expenses	53,639	54,660
Income (loss) from continuing operations before income taxes	(160,997)	(118,604)
Tax expense (benefit)	13,671	9,725
Net income (loss)	(174,668)	(128,310)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Unrealized (gains) losses on available-for-sale securities that were reclassified from net income
General and administrative expenses	52	52
Income (loss) from continuing operations before income taxes	(52)	(52)
Tax expense (benefit)	(12)	(12)
Net income (loss)	$ (40)	$ (40)