Condensed Consolidated Statements of Cash Flow (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating
Net income	$ 22.5	$ 17.4
Non-cash items included in net income:
Depreciation and amortization	15.3	14.4
Deferred income tax	0.7	(0.5)
Pension and other postretirement benefits	0.8	0.7
Stock-based compensation	2.2	0.9
Loss from equity affiliates	0.0	0.2
Other items	(2.7)	1.9
Changes in operating working capital, net of assets acquired:
Accounts receivable	(33.7)	(12.5)
Inventories	10.8	(4.0)
Prepaid expenses	(3.5)	(2.7)
Accounts payable	1.3	7.5
Accrued expenses and other current liabilities	(10.7)	(11.7)
Accrued income taxes	2.1	1.4
Net changes in operating working capital	(33.7)	(22.0)
Net cash provided by operations	5.1	13.0
Investing
Capital spending	(7.4)	(7.3)
Capitalized software costs	(0.7)	(1.4)
Acquisitions, net of cash acquired	(170.6)	0.0
Other investing	2.4	1.1
Net cash used in investing	(176.3)	(7.6)
Financing
Cash dividends paid to SWM stockholders	(13.7)	(13.6)
Changes in short-term debt	0.0	(0.2)
Proceeds from issuances of long-term debt	212.0	0.0
Payments on long-term debt	(0.4)	(0.6)
Purchases of common stock	(1.0)	(0.9)
Net cash provided by (used in) financing	196.9	(15.3)
Effect of exchange rate changes on cash and cash equivalents	(2.0)	(0.5)
Increase (decrease) in cash and cash equivalents	23.7	(10.4)
Cash and cash equivalents at beginning of period	103.0	93.8
Cash and cash equivalents at end of period	126.7	83.4
Supplemental Cash Flow Disclosures
Cash paid for interest, net	2.3	3.5
Cash paid for taxes, net	2.3	3.3
Change in capital spending in accounts payable and accrued liabilities	$ 2.9	$ 1.7