Derivative Instruments and Hedging Activities (Tables)

12 Months Ended

Dec. 31, 2017

Derivative Instruments and Hedging Activities

Schedule of notional amounts outstanding under foreign currency contracts

        The Company had the following notional amounts outstanding under foreign currency contracts at December 31, (in millions):

Buy	Notional Amount in Buy Currency		Sell	Maturity	Notional Amount in U.S. Dollars		Fair Value of Assets		Fair Value of Liabilities
December 31, 2017:
Euro		59.5	U.S. Dollars	January 2018	$	67.0	$	4.5	$	—
Swiss Francs		11.0	U.S. Dollars	January 2018		11.3		—		—
Singapore Dollar		4.9	U.S. Dollars	January 2018		3.6		—		—
Euro		1.8	Polish Zloty	January 2018		2.3		—		0.1
					$	84.2	$	4.5	$	0.1
December 31, 2016:
Euro		21.1	U.S. Dollars	January 2017	$	23.3	$	—	$	1.1
Swiss Francs		7.9	U.S. Dollars	January 2017		8.0		—		0.3
U.S. Dollars		4.0	Israel Shekel	January 2017		4.0		—		—
Israel Shekel		15.3	U.S. Dollars	January 2017		4.0		—		—
Euro		1.4	Polish Zloty	January 2017		1.4		—		—
					$	40.7	$	—	$	1.4

Schedule of fair value and balance sheet location of derivative instruments

        The fair value of the derivative instruments described above were recorded in the consolidated balance sheets for the years ended December 31, 2017 and 2016 as follows (in millions):

	Balance Sheet Location	2017		2016
Derivative assets:
Foreign exchange contracts	Other current assets	$	4.5	$	—
Embedded derivatives in purchase and delivery contracts	Other current assets		0.9		2.7
Fixed price commodity contracts	Other current assets		0.8		0.2
Embedded derivatives in purchase and delivery contracts	Other long-term assets		—		1.3
Derivative liabilities:
Foreign exchange contracts	Other current liabilities	$	0.1	$	1.4
Embedded derivatives in purchase and delivery contracts	Other current liabilities		1.5		0.3
Embedded derivatives in purchase and delivery contracts	Other long-term liabilities		1.4		—

Schedule of impact on net income of unrealized gains and losses resulting from changes in the fair value of derivative instruments

        The impact on net income of unrealized gains and losses resulting from changes in the fair value of derivative instruments for the years ending December 31 are as follows (in millions) and are recorded within interest and other income (expense), net in the consolidated statements of income and comprehensive income:

	2017			2016			2015
Foreign exchange contracts	$	5.8		$	(0.1	)	$	3.8
Embedded derivatives in purchase and delivery contracts		(5.7	)		3.7			(0.2	)
Fixed price commodity contracts		0.6			0.6			(0.2	)
Income (expense), net	$	0.7		$	4.2		$	3.4