Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Changes to goodwill are as follows:



(in millions)	Fluid Handling			Payment & Merchandising Technologies			Aerospace & Electronics			Engineered Materials			Total
Balance as of December 31, 2015	$	218.7		$	575.2		$	202.6		$	171.4		$	1,167.9
Currency translation	(6.4		)	(11.9		)	(0.3		)	(0.1		)	(18.7		)
Balance at December 31, 2016	$	212.3		$	563.3		$	202.3		$	171.3		$	1,149.2
Additions	22.6			8.9			—			—			31.5
Currency translation	9.4			15.6			0.1			0.1			25.2
Balance as of September 30, 2017	$	244.3		$	587.8		$	202.4		$	171.4		$	1,205.9

Changes To Intangible Assets

Changes to intangible assets are as follows:



(in millions)	Nine Months Ended September 30, 2017			Year Ended December 31, 2016
Balance at beginning of period, net of accumulated amortization	$	282.2		$	317.1
Additions	18.2			—
Amortization expense	(22.8		)	(30.7		)
Currency translation and other	7.1			(4.2		)
Balance at end of period, net of accumulated amortization	$	284.7		$	282.2

For the nine month period ended September 30, 2017, additions to intangible assets represent the purchase price allocation related to the April 2017 acquisition of Westlock and the June 2017 acquisition of Microtronic. See discussion in Note 2, "Acquisitions" for further details.

Summary Of Intangible Assets

A summary of intangible assets follows:



	Weighted Average Amortization Period of Finite Lived Assets (in years)
		September 30, 2017						December 31, 2016
(in millions)		Gross Asset		Accumulated Amortization		Net		Gross Asset		Accumulated Amortization		Net
Intellectual property rights	16.5	$	89.7	$	54.6	$	35.1	$	86.4	$	52.1	$	34.3
Customer relationships and backlog	15.6	413.5		175.2		238.3		388.9		153.4		235.5
Drawings	37.9	11.1		10.3		0.8		11.1		10.3		0.8
Other	12.8	63.3		52.8		10.5		60.3		48.7		11.6
Total	15.9	$	577.6	$	292.9	$	284.7	$	546.7	$	264.5	$	282.2