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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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The number of facilities listed for sale by the reporting entity.

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Property, Plant, and Equipment and Assets Held For Sale - Assets Held For Sale (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($) building
Assets held for sale
Asset impairment charges	$ 375,172	$ 1,139	$ 69,520
Assets held for sale	$ 0	0
South Korea
Assets held for sale
Number of facilities listed for sale \| building			2
Asset impairment charges			$ 4,500
St. Paul, Minnesota
Assets held for sale
Asset impairment charges		$ 700	1,200
Lab equipment
Assets held for sale
Non-cash impairment charges			$ 6,200