Basis of Presentation (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Customer deposits	$ 541,455		$ 512,580
Contract asset insurance renewals	93,500		91,100
Residential mortgage loans available-for-sale fair value	642,793		629,582
Residential mortgage loans available-for-sale aggregate outstanding principal balance	648,000		645,700
Net gains from the sale of mortgages	$ 49,800	$ 50,600
Variability in future cash flows of derivative instruments in days	90 days
Interest rate lock commitments
Finite-Lived Intangible Assets [Line Items]
Derivative, notional amount	$ 780,200		469,400
Forward contracts
Finite-Lived Intangible Assets [Line Items]
Derivative, notional amount	1,300,000		977,000
Whole loan commitments
Finite-Lived Intangible Assets [Line Items]
Derivative, notional amount	$ 327,100		$ 237,100