Business Combinations - Narrative - Lumara Health Acquisition (Details) - USD ($) $ / shares in Units, shares in Millions		3 Months Ended	12 Months Ended
	Nov. 12, 2014	Dec. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Aug. 31, 2015	Mar. 31, 2015	Nov. 30, 2014	Nov. 11, 2014
Business Acquisition [Line Items]
Fair value of common stock issued in connection with the Lumara Health acquisition			$ 0	$ 0	$ 111,964,000
Share price (USD per share)						$ 63.75	$ 44.00
Deferred tax liabilities		$ 197,066,000	197,066,000	189,145,000
Acquisition-related costs			$ 0	11,232,000	9,478,000
Lumara Health
Business Acquisition [Line Items]
Cash consideration	$ 600,000,000
Fair value of common stock issued in connection with the Lumara Health acquisition	$ 111,964,000
Shares of common stock (shares)	3.2
Additional merger consideration	$ 350,000,000.0							$ 350,000,000
Milestone payment due		$ 100,000,000
Maximum amount of contingent payments due In any calendar year	$ 100,000,000
Share price (USD per share)									$ 34.88
Discount rate (percent)	5.00%		5.00%
Revenue reserves adjustment				7,200,000
Decrease in deferred tax liability				5,400,000
Final settlement adjustments				4,500,000
Gross accounts receivable	$ 40,500,000
Inventories	30,300,000
Inventory fair value step up adjustment	26,100,000		$ 6,200,000
Inventory fair value step up, year 2			4,100,000
Inventory fair value step up, year 1			2,100,000
Amortization of fair value adjustment			900,000	1,200,000
Deferred tax liabilities	$ 193,300,000
Combined federal and state statutory income tax rate (percent)	38.80%
Deferred income tax liabilities	$ 295,676,000
Assets acquired, deferred tax assets, current	102,400,000
Acquisition-related costs					9,500,000
Revenue of acquiree since acquisition					22,500,000
Lumara Health | Cost of product sales and services
Business Acquisition [Line Items]
Inventory fair value step up, year 3			$ 4,900,000
Inventory fair value step up, year 2				$ 11,600,000
Inventory fair value step up, year 1					$ 1,300,000
Lumara Health | Escrow Fund
Business Acquisition [Line Items]
Escrow fund	35,000,000
Lumara Health | First Milestone
Business Acquisition [Line Items]
Milestone payment due	100,000,000
Net sales	$ 300,000,000.0
Consecutive time period for achievement of milestone	12 months
Lumara Health | Second Milestone
Business Acquisition [Line Items]
Milestone payment due	$ 100,000,000
Net sales	$ 400,000,000.0
Consecutive time period for achievement of milestone	12 months
Milestone payment	$ 50,000,000
Lumara Health | Third Milestone
Business Acquisition [Line Items]
Milestone payment due	50,000,000
Net sales	$ 700,000,000.0
Consecutive time period for achievement of milestone	24 months
Milestone payment	$ 100,000,000
Lumara Health | Fourth Milestone
Business Acquisition [Line Items]
Milestone payment due	100,000,000
Net sales	$ 500,000,000.0
Consecutive time period for achievement of milestone	12 months
Lumara Health | Fifth Milestone
Business Acquisition [Line Items]
Milestone payment due	$ 50,000,000
Net sales	$ 200,000,000.0
Consecutive time period for achievement of milestone	5 years
Lumara Health | Common Stock
Business Acquisition [Line Items]
Fair value of common stock issued in connection with the Lumara Health acquisition	$ 112,000,000
Shares of common stock (shares)	3.2