4. Intangible Assets, Goodwill and Other (Tables)

6 Months Ended

Jun. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Changes to goodwill by segment were as follows (in millions):



	Life Science			Clinical Diagnostics			Total
Balances as of January 1, 2016:
Goodwill	$	207.2		$	316.9		$	524.1
Accumulated impairment losses	(27.2		)	(1.0		)	(28.2		)
Goodwill, net	180.0			315.9			495.9

Acquisitions	2.8			—			2.8
Currency fluctuations	0.3			6.3			6.6

Balances as of June 30, 2016:
Goodwill	210.3			323.2			533.5
Accumulated impairment losses	(27.2		)	(1.0		)	(28.2		)
Goodwill, net	$	183.1		$	322.2		$	505.3

In conjunction with the purchase of certain assets from Propel in January 2016 (see Note 2, "Acquisitions"), we recorded $2.8 million of goodwill and $36.0 million of definite-lived intangible assets: $33.0 million of developed product technology and $3.0 million of covenants not to compete.

Schedule of identifiable purchased intangible assets with definite lives

Information regarding our identifiable purchased intangible assets with definite and indefinite lives is as follows (in millions):



	June 30, 2016
	Average Remaining Life (years)	Purchase Price		Accumulated Amortization			Net Carrying Amount
Customer relationships/lists	2-9	$	87.7	$	(51.7	)	$	36.0
Know how	1-10	186.3		(133.4		)	52.9
Developed product technology	3-13	132.4		(53.6		)	78.8
Licenses	2-10	39.4		(29.7		)	9.7
Tradenames	5-8	3.7		(2.6		)	1.1
Covenants not to compete	2-10	7.9		(2.1		)	5.8
Total definite-lived intangible assets		457.4		(273.1		)	184.3
In-process research and development		46.4		—			46.4
Total purchased intangible assets		$	503.8	$	(273.1	)	$	230.7



	December 31, 2015
	Average Remaining Life (years)	Purchase Price		Accumulated Amortization			Net Carrying Amount
Customer relationships/lists	2-10	$	84.7	$	(46.8	)	$	37.9
Know how	1-10	184.0		(121.6		)	62.4
Developed product technology	4-12	101.3		(48.9		)	52.4
Licenses	3-10	39.2		(28.5		)	10.7
Tradenames	5-9	3.5		(2.4		)	1.1
Covenants not to compete	3-7	4.8		(1.7		)	3.1
Total definite-lived intangible assets		417.5		(249.9		)	167.6
In-process research and development		46.4		—			46.4
Total purchased intangible assets		$	463.9	$	(249.9	)	$	214.0

Finite-lived Intangible Assets Amortization Expense [Table Text Block]

Amortization expense related to purchased intangible assets is as follows (in millions):



	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2016		2015		2016		2015

Amortization expense	$	9.6	$	9.3	$	19.0	$	18.5