Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows provided by operating activities:
Net income	$ (12.5)	$ (26.0)
Adjustments to reconcile net loss to net cash provided by operating activities:
Share-based compensation expense	6.6	6.8
Depreciation and amortization	28.2	26.6
Amortization of deferred financing costs	0.7	0.7
Deferred income taxes	(4.2)	(11.4)
Change in fair value of contingent consideration, net	0.6	1.7
Other	0.0	(0.1)
Changes in operating assets and liabilities:
Accounts receivable	108.2	141.6
Inventories	(25.6)	(5.2)
Prepaid expenses and other assets	(15.3)	(16.6)
Accounts payable	(15.6)	4.2
Accrued expenses	1.1	1.7
Accrued compensation	(14.9)	(21.3)
Contract liabilities	0.5	2.1
Net cash provided by operating activities:	57.8	104.8
Cash flows used in investing activities:
Purchases of property, plant and equipment and other	(24.2)	(21.4)
Net cash used in investing activities:	(24.2)	(21.4)
Cash flows used in financing activities:
Proceeds from revolving credit facility	0.0	30.0
Principal payments on revolving credit facility	(20.0)	(80.0)
Principal payments on term loan facility	(2.8)	(2.8)
Proceeds from issuance of common stock upon exercise of stock options	9.1	0.9
Taxes paid on behalf of employees for equity activity	(5.6)	(6.0)
Contingent consideration payments	(0.7)	(0.5)
Net cash used in financing activities:	(20.0)	(58.4)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	0.1	0.0
Net increase in cash, cash equivalents and restricted cash	13.7	25.0
Cash, cash equivalents and restricted cash at beginning of period	168.0	112.4
Cash, cash equivalents and restricted cash at end of period	181.7	137.4
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	7.4	8.9
Cash paid during the period for income taxes	3.6	5.0
Supplemental information on non-cash investing and financing activities:
Purchases of property, plant and equipment unpaid at period end	7.3	7.1
Reconciliation of cash and cash equivalent and restricted cash
Total cash, cash equivalents and restricted cash	$ 181.7	$ 137.4