Basis of presentation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Reclassification
Income tax credits and adjustments	$ 22,900
Other operating expenses	28,272	$ 24,361
PR
Reclassification
Deferred tax asset valuation allowance	2,563	$ (4,565)
US federal taxes and Puerto Rico taxes
Reclassification
Income tax credits and adjustments	6,500
Prior period correction adjustment
Reclassification
Income tax credits and adjustments	16,500
Prior period correction adjustment | BHC
Reclassification
Deferred tax asset valuation allowance	53,700
Prior period correction adjustment | Other operating expenses
Reclassification
Other operating expenses	6,400
Prior period correction adjustment | Tax Year 2023
Reclassification
Income tax credits and adjustments	5,500
Prior period correction adjustment | Tax Year 2022
Reclassification
Income tax credits and adjustments	5,400
Prior period correction adjustment | Prior to tax year 2022
Reclassification
Income tax credits and adjustments	5,600
Prior period correction adjustment | Prior to tax year 2022 | Other operating expenses
Reclassification
Other operating expenses	$ 3,000