Leases (Tables)

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Lease, Cost [Table Text Block]

The Company has operating leases for corporate offices, branch offices and data centers. The following table includes certain information about these leases (dollars in millions).

	Year Ended December 31,
	2021			2020			2019
Components of lease expense —
Operating lease expense	$	26.9		$	28.1		$	27.4
Short-term lease expense	5.4			6.4			2.0
Variable lease expense	5.1			5.2			4.6
	$	37.4		$	39.7		$	34.0
Weighted-average remaining lease term of operating leases	3.2 years			3.7 years			4.2 years
Weighted-average discount rate of operating leases	3.47		%	3.86		%	4.04		%
Supplemental cash flow information —
Cash paid for operating lease liabilities	$	29.1		$	28.1		$	26.9
Right-of-use assets obtained with lease liabilities	$	10.8		$	18.9		$	23.5

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

uture maturities of operating lease liabilities are as follows (in millions):

2022	$	25.1
2023	19.9
2024	12.1
2025	5.9
2026	3.3
Thereafter	0.8
Total future minimum lease payments	67.1
Less: imputed interest	3.6
	$	63.5