Note 15 - Leases (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Operating Lease, Assets and Liabilities, Weighted Average Remaining Terms and Discount Rate [Table Text Block]

	December 31, 2023			December 31, 2022
	(Dollars in millions)
Operating Leases:
ROU assets	$	32.1		$	29.6
Lease liabilities	$	34.8		$	32.5
Weighted-average remaining lease term (in years)		4.1			4.0
Weighted-average discount rate		3.8	%		2.9	%
Operating cash flows from operating leases	$	11.4		$	11.4
ROU assets obtained in exchange for lease obligations	$	12.6		$	5.9

Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]

	As of December 31, 2023
	Operating Leases
	(In thousands)
2024	$	10,800
2025		8,960
2026		7,297
2027		5,238
2028		3,916
Thereafter		1,403
Total lease payments	$	37,614
Less amount of payment representing interest		(2,817	)
Total present value of lease payments	$	34,797