Mortgage Servicing Rights ("MSRs") (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Servicing Asset at Fair Value, Amount [Roll Forward]
Fair value at beginning of year	$ 147,571	$ 92,081	$ 85,638
Additions from loans sold with servicing retained	46,221	72,754	71,077
Estimate of changes in fair value due to:
Early buyout options (“EBO”) exercised	(176)	(749)	(1,291)
Payoffs and paydowns	(23,455)	(34,788)	(32,579)
Changes in valuation inputs or assumptions	60,064	18,273	(30,764)
Fair value at end of year	230,225	147,571	92,081
Unpaid principal balance of mortgage loans serviced for others	$ 14,052,596	$ 13,126,254	$ 10,833,135