CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net earnings (loss)	$ (1.9)	$ 10.9
Adjustments to reconcile net earnings (loss) to cash provided by (used in) operating activities:
Depreciation and amortization	10.7	11.1
Stock-based compensation	4.2	1.6
Deferred income tax expense (benefit)	0.6	(6.3)
Amortization of debt issuance costs	0.2	0.2
Non-cash restructuring charges	0.9	0.3
Pension settlement charges	1.6	0.7
Other non-cash items	0.3	1.1
Changes in operating assets and liabilities:
Customer receivables	5.4	(9.4)
Inventories	(15.1)	(10.2)
Prepaid expenses and other assets	(3.2)	(0.8)
Accounts payable	3.8	(6.8)
Other liabilities	7.1	(8.8)
Cash provided by (used in) operating activities	14.6	(16.4)
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property and equipment	(8.9)	(10.7)
Other, net	(0.2)	0.4
Cash used in investing activities	(9.1)	(10.3)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from revolving credit facility	92.0	219.5
Repayment of revolving credit facility	(112.0)	(53.5)
Repayment of term loans	(3.6)	(4.2)
Payment of dividends	(3.6)	(8.9)
Payments of withholding taxes related to net share settlements of equity awards	(4.3)	(3.8)
Other, net	(0.1)	0.0
Cash provided by (used in) financing activities	(31.6)	149.1
Effect of exchange rate changes on cash and cash equivalents	(0.4)	(0.3)
Net increase (decrease) in cash and cash equivalents	(26.5)	122.1
Cash and cash equivalents at beginning of period	37.3	8.5	$ 8.5
Cash and cash equivalents at end of period	$ 10.8	$ 130.6	$ 37.3