Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2018	Jun. 30, 2017
OPERATING ACTIVITIES
Net income		$ 13.1	$ 3.3		$ 19.4	$ 0.4
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization					26.9	18.5
Interest accretion of convertible notes discount					5.0	6.6
Employee share-based compensation expense					3.4	8.0
Financing costs amortization		0.4	0.4		0.7	0.7
Unrealized foreign currency transaction (gain) loss					(0.8)	0.2
Other non-cash operating activities					0.0	(0.3)
Changes in assets and liabilities, net of acquisitions:
Accounts receivable				$ 18.3	20.6	(5.8)
Inventory					(36.3)	(17.4)
Unbilled contract revenues and other assets				2.3	0.0	6.2
Accounts payable and other liabilities					(1.0)	(16.6)
Customer advances and billings in excess of contract revenue				8.6	8.8	(3.4)
Net Cash Provided By (Used In) Operating Activities					46.7	(2.9)
INVESTING ACTIVITIES
Capital expenditures					(19.1)	(16.7)
Acquisition of businesses, net of cash acquired					(12.5)	(23.2)
Proceeds from sale of assets					0.0	0.7
Government grants					0.7	0.3
Net Cash Used In Investing Activities					(30.9)	(38.9)
FINANCING ACTIVITIES
Borrowings on revolving credit facilities					65.0	2.2
Repayments on revolving credit facilities					(54.8)	(5.1)
Repayments on term loan					(3.0)	0.0
Payments for debt issuance costs					(0.2)	0.0
Proceeds from exercise of stock options					1.8	0.9
Common stock repurchases					(2.3)	(1.8)
Dividend distribution to noncontrolling interest					(0.4)	0.0
Net Cash Provided By (Used In) Financing Activities					6.1	(3.8)
Effect of exchange rate changes on cash and cash equivalents					(3.8)	3.6
Net increase (decrease) in cash, cash equivalents, restricted cash, and restricted cash equivalents					18.1	(42.0)
Cash, cash equivalents, restricted cash, and restricted cash equivalents at beginning of period (1)	[1]				131.4	282.9
CASH, CASH EQUIVALENTS, RESTRICTED CASH, AND RESTRICTED CASH EQUIVALENTS AT END OF PERIOD (1)	[1]	$ 149.5	$ 240.9	$ 149.5	$ 149.5	$ 240.9

[1] Includes restricted cash and restricted cash equivalents of $1.0 in other assets at June 30, 2018, $6.4 ($5.4 in other current assets and $1.0 in other assets) at June 30, 2017, and $8.7 ($7.7 in other current assets and $1.0 in other assets) at December 31, 2017. For further information regarding restricted cash and restricted cash equivalents balances, refer to Note 5, “Debt and Credit Arrangements.”