Schedule II - Valuation and qualifying accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Allowance for Doubtful Accounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	$ (9,023)	$ (8,423)	$ (6,767)
Additions Charged to Costs and Expenses	(1,425)	(1,772)	(1,858)
Deduction	719	1,172	202
Balance at End of Year	(9,729)	(9,023)	(8,423)
Tax Valuation Allowance
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	(13,740)	(13,527)	(10,786)
Additions Charged to Costs and Expenses	(403)	(213)	(2,741)
Balance at End of Year	$ (14,143)	$ (13,740)	$ (13,527)