CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities:
Consolidated net income	$ 29.0	$ 25.0
Adjustments to reconcile consolidated net income to cash flows from operating activities:
Depreciation and amortization	30.2	28.6
Write-down of demonstration inventories to net realizable value	16.0	14.1
Stock-based compensation expense	3.2	3.8
Deferred income taxes	(2.6)	(0.4)
Other non-cash expenses, net	(0.6)	1.1
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(20.9)	36.6
Inventories	(21.9)	(58.6)
Accounts payable and accrued expenses	(14.1)	(4.3)
Income taxes payable	(12.9)	(15.5)
Deferred revenue	5.0	(5.8)
Customer advances	(21.9)	22.2
Other changes in operating assets and liabilities, net	(13.4)	(4.9)
Net cash provided by (used in) operating activities	(24.9)	41.9
Cash flows from investing activities:
Cash paid for acquisitions, net of cash acquired	(2.1)	(21.7)
Disposal of product line	0.5
Purchases of property, plant and equipment	(31.1)	(30.4)
Sales of property, plant and equipment	0.6	1.7
Net cash used in investing activities	(32.1)	(50.4)
Cash flows from financing activities:
Repayments of revolving lines of credit		(216.5)
Proceeds from revolving lines of credit		20.0
Proceeds from Note Purchase Agreement		240.0
Repayment of other debt, net	(0.5)	(26.3)
Payment of deferred financing costs		(1.4)
Proceeds from issuance of common stock, net	4.5	3.4
Changes in restricted cash	(1.3)	(1.1)
Cash payments to noncontrolling interest		(0.6)
Net cash provided by financing activities	2.7	17.5
Effect of exchange rate changes on cash and cash equivalents	(5.4)	(14.7)
Net change in cash and cash equivalents	(59.7)	(5.7)
Cash and cash equivalents at beginning of period	310.6	246.0
Cash and cash equivalents at end of period	$ 250.9	$ 240.3