Schedule II - Valuation and Qualifying Accounts and Reserves (Details) - Valuation allowance for deferred tax asset - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Movement in Valuation Allowances and Reserves
Balance at beginning of year	$ 157,450	$ 121,778	$ 116,543
Additions charged to expense	9,826	44,188	7,490
Deductions	(7,934)	(8,516)	(2,255)
Balance at end of year	$ 159,342	$ 157,450	$ 121,778