Intangible assets Intangible assets (Tables)

3 Months Ended

Mar. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Indefinite-Lived Intangible Assets

The following table summarizes the carrying amount of the Company's intangible assets and goodwill, net of accumulated amortization:

	March 31, 2019
	Estimated Life (years)	Cost		Measurement Period Adjustment		Additions		Gross Total		Accumulated Amortization			Net
Intangible assets, net	5-22	$	818.4	—		$	10.0	$	828.4	$	(71.3	)	$	757.1
IPR&D	indefinite	50.0		(9.0	)	—		41.0		—			41.0
Goodwill	indefinite	259.7		8.0		—		267.7		—			267.7

	December 31, 2018
	Estimated Life (years)	Cost		Measurement Period Adjustment	Additions	Gross Total		Accumulated Amortization			Net
Intangible assets, net	5-22	$	151.4	—	667.0	$	818.4	$	(56.8	)	$	761.6
IPR&D	indefinite	50.0		—	—	50.0		—			50.0
Goodwill	indefinite	49.1		—	210.6	259.7		—			259.7

Schedule of Finite-Lived Intangible Assets

The following table summarizes the carrying amount of the Company's intangible assets and goodwill, net of accumulated amortization:

	March 31, 2019
	Estimated Life (years)	Cost		Measurement Period Adjustment		Additions		Gross Total		Accumulated Amortization			Net
Intangible assets, net	5-22	$	818.4	—		$	10.0	$	828.4	$	(71.3	)	$	757.1
IPR&D	indefinite	50.0		(9.0	)	—		41.0		—			41.0
Goodwill	indefinite	259.7		8.0		—		267.7		—			267.7

	December 31, 2018
	Estimated Life (years)	Cost		Measurement Period Adjustment	Additions	Gross Total		Accumulated Amortization			Net
Intangible assets, net	5-22	$	151.4	—	667.0	$	818.4	$	(56.8	)	$	761.6
IPR&D	indefinite	50.0		—	—	50.0		—			50.0
Goodwill	indefinite	49.1		—	210.6	259.7		—			259.7