Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash Flows from Operating Activities
Net income (loss)	$ (14.1)	$ 6.3
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	18.8	17.9
Amortization of deferred financing costs	0.4	0.4
Loss on disposal of fixed assets	0.0	0.2
Deferred income taxes	(1.4)	(1.4)
Amortization of initial value of interest rate swap	(0.2)	(0.2)
Currency gain on foreign denominated debt and notes payable	(0.2)	(3.6)
Amortization of restricted stock units	8.8	2.7
Changes in operating assets and liabilities:
(Increase) decrease in receivables, net	(4.8)	(3.0)
(Increase) decrease in inventory	(7.6)	(5.5)
(Increase) decrease in prepaid expenses and other assets	(1.2)	0.1
Increase (decrease) in accounts payable	2.9	1.8
Increase (decrease) in accrued liabilities	(4.9)	(0.3)
Change in other assets and liabilities	(5.9)	(2.9)
Net cash provided by (used in) operating activities	9.4	12.5
Capital expenditures:
Converter equipment	(8.4)	(8.0)
Other capital expenditures	(1.4)	(2.9)
Total capital expenditures	(9.8)	(10.9)
Patent and trademark expenditures	(0.9)	(0.3)
Net cash used in investing activities	(10.7)	(11.2)
Cash Flows from Financing Activities
Principal payments on term loans	(0.4)	(0.4)
Payments on finance lease liabilities	(0.2)	(0.2)
Exit payment	0.0	(8.2)
Tax payments for withholdings on stock-based awards distributed	(2.5)
Net cash used in financing activities	(3.1)	(8.8)
Effect of Exchange Rate Changes on Cash	(0.2)	(0.5)
Net Decrease in Cash and Cash Equivalents	(23.4)	(8.0)
Cash and Cash Equivalents, beginning of period	103.9	48.5
Cash and Cash Equivalents, end of period	$ 80.5	$ 40.5