Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash Flows from Operating Activities
Net loss	$ (21.1)	$ (36.5)
Adjustments to reconcile net loss to net cash used by operating activities:
Depreciation	20.8	20.5
Amortization	7.1	7.1
Provision for doubtful accounts	43.1	60.8
Provision for obsolescence	9.7	10.2
Share-based compensation	3.8	9.7
Foreign exchange losses (gains)	4.6	(0.9)
Deferred income taxes	1.8	12.3
Other	3.2	6.0
Changes in assets and liabilities:
Accounts receivable	(4.4)	(42.3)
Inventories	(58.4)	(23.5)
Prepaid expenses and other	0.1	10.0
Accounts payable and accrued liabilities	(106.3)	(107.3)
Income and other taxes	(0.9)	1.7
Noncurrent assets and liabilities	0.6	(8.0)
Net cash used by operating activities of continuing operations	(96.3)	(80.2)
Cash Flows from Investing Activities
Capital expenditures	(27.8)	(23.9)
Disposal of assets	0.8	1.6
Net cash used by investing activities of continuing operations	(27.0)	(22.3)
Cash Flows from Financing Activities
Debt, net (maturities of three months or less)	3.6	1.9
Repayment of debt	(0.5)	(1.0)
Repurchase of common stock	(2.7)	(6.2)
Net cash provided (used) by financing activities of continuing operations	0.4	(5.3)
Cash Flows from Discontinued Operations
Net cash used by operating activities of discontinued operations	0.0	(3.5)
Net cash used by discontinued operations	0.0	(3.5)
Effect of exchange rate changes on cash and cash equivalents	13.9	16.9
Net decrease in cash and cash equivalents	(109.0)	(94.4)
Cash and cash equivalents at beginning of year	881.5	654.4
Cash and cash equivalents at end of period	$ 772.5	$ 560.0