Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenue:
Total revenue		$ 75.6	$ 79.4	$ 138.7	$ 144.3
Cost of sales:
Selling, general and administrative expenses		(30.8)	(26.6)	(65.0)	(55.8)
Depreciation and amortization		(10.6)	(10.1)	(20.5)	(19.5)
Net operating income		9.4	13.8	8.0	18.4
Other expense
Interest expense, net		(6.7)	(7.3)	(13.3)	(13.6)
Other finance income		0.1	0.1	0.2	0.2
Total other expense, net		(6.6)	(7.2)	(13.1)	(13.4)
Net income (loss) before income taxes		2.8	6.6	(5.1)	5.0
Income tax (expense) benefit		(0.8)	(1.0)	1.4	(0.8)
Net income (loss)		2.0	5.6	(3.7)	4.2
Other comprehensive income:
Foreign currency translation (loss) gain		(0.2)	(2.7)	0.8	(5.6)
Reclassification of loss on hedging instrument to comprehensive income			0.1		0.3
Actuarial gains on pension plan		0.3	0.3	0.6	0.5
Other comprehensive income (loss)		0.1	(2.3)	1.4	(4.8)
Comprehensive income (loss)		$ 2.1	$ 3.3	$ (2.3)	$ (0.6)
Net income (loss) per common share – basic		$ 0.07	$ 0.20	$ (0.13)	$ 0.15
Net income (loss) per common share - diluted		$ 0.07	$ 0.19	$ (0.13)	$ 0.14
Weighted average number of shares outstanding during the period – basic		28,474,059	28,186,725	28,538,897	28,081,041
Weighted average number of shares outstanding during the period – diluted		29,046,281	29,073,078	28,538,897	29,023,288
Stock-based compensation included in:
Selling, general and administrative expenses		$ (1.6)	$ (3.1)	$ (3.9)	$ (6.0)
Service [Member]
Revenue:
Total revenue		65.8	67.5	122.9	125.0
Cost of sales:
Cost of sales	[1]	(19.0)	(20.5)	(34.9)	(35.5)
Product Sales [Member]
Revenue:
Total revenue		9.8	11.9	15.8	19.3
Cost of sales:
Cost of sales	[1]	$ (5.8)	$ (8.4)	$ (10.3)	$ (15.1)

[1] Excluding depreciation and amortization