Asset Impairment Charges and Facility Closing and Reorganization Costs - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Restructuring and Related Activities [Abstract]
Impairment of long-lived assets	$ 11,860	$ 2,232	$ 11,860	$ 2,232

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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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration