Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating activities:
Net income (loss)	$ 55.9	$ (63.9)
Adjustments to reconcile net income (loss) to net cash used by operating activities:
Depreciation and amortization	57.5	47.6
Amortization of deferred financing fees and debt discount	1.6	1.8
Loss on sale of business	8.6	0.0
(Gain) loss on sale of property, plant and equipment	(5.3)	0.1
Loss on extinguishment of debt	1.8	0.7
Deferred income taxes	(3.5)	(28.2)
Stock-based compensation expense	5.7	6.0
Other	0.0	0.4
Changes in operating assets and liabilities:
Trade accounts receivable, net	(259.4)	(86.6)
Inventories	(50.5)	(42.9)
Prepaid expenses and other current assets	(58.3)	(4.2)
Trade accounts payable	165.3	37.3
Pensions and other postretirement benefit liabilities	(5.3)	(3.3)
Other, net	7.7	11.7
Net cash used by operating activities	(78.2)	(123.5)
Investing activities:
Purchases of property, plant and equipment	(24.1)	(16.5)
Purchases of businesses, net of cash acquired	0.0	(1,165.5)
Proceeds from sale of property, plant and equipment	7.6	0.7
(Payments)/proceeds from sale of business	(8.2)	650.0
Other	(6.2)	(1.3)
Net cash used by investing activities	(30.9)	(532.6)
Financing activities:
Proceeds from issuance of long-term debt	0.0	947.0
Payments on long-term debt and finance lease obligations	(180.6)	(4.6)
Net proceeds under revolving credit facilities	345.9	394.4
Short-term financing, net	6.3	(4.3)
Taxes paid related to net share settlements of stock-based compensation awards	(1.3)	(2.0)
Stock option exercises	0.7	0.0
Net cash provided by financing activities	171.0	1,330.5
Effect of exchange rate changes on cash and cash equivalents	(12.5)	(8.0)
Net increase in cash and cash equivalents	49.4	666.4
Cash and cash equivalents at beginning of period	330.3	121.6
Cash and cash equivalents at end of period	379.7	788.0
Cash paid during the period for:
Income taxes	9.8	9.9
Interest, net of capitalized interest	18.0	40.3
Non-cash activities:
Fair value of common stock issued for acquisition of business	0.0	649.3
Additions of property, plant and equipment included in trade accounts payable and other accrued expenses	4.8	12.4
Additions of property, plant and equipment under a finance lease obligation	18.0	1.8
Additions of assets under an operating lease obligation	$ 17.5	$ 2.9