Mortgage Servicing Rights (Tables)

12 Months Ended

Dec. 31, 2021

Transfers and Servicing [Abstract]

Schedule of Servicing Assets at Amortized Value

Information with respect to the Company’s mortgage servicing rights follows:

Year Ended December 31,	2021			2020			2019
Balance at beginning of year	$	34.3		$	30.6		$	27.7
Originations of mortgage servicing rights	3.7			11.7			7.3
Amortization expense	(6.4)			(8.0)			(4.4)
Balance at end of year	31.6			34.3			30.6
Less valuation reserve	(3.4)			(10.3)			(0.4)
Balance at end of year, net of valuation reserve	$	28.2		$	24.0		$	30.2
Principal balance of serviced loans underlying mortgage servicing rights	$	3,203.7		$	3,585.5		$	3,710.1
Mortgage servicing rights as a percentage of serviced loans	0.88		%	0.67		%	0.81		%