Restructuring (Details) $ in Thousands		3 Months Ended		6 Months Ended
	Jun. 19, 2017 USD ($) position	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)
Restructuring, Settlement and Impairment Provisions [Abstract]
Impairment charge		$ 329,097	$ 0	$ 329,097	$ 0
Severance and other exits costs	$ 5,900
Other exit costs	$ 3,000
Restructuring Reserve [Roll Forward]
Balance				0
Expenses, Net				5,900
Cash				(100)
Noncash				0
Balance		$ 5,800		$ 5,800
Ionsys | Not discontinued operations, discontinuation and market withdrawal
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of positions eliminated | position	57
Percent of workforce eliminated	15.00%
Restructuring, Settlement and Impairment Provisions [Abstract]
Impairment, severance and other employee costs	$ 277,000
Impairment charge	268,100
Severance and other exits costs	$ 8,900